View source for Professor Oak

{{CharInfobox
|color={{kanto color}}
|corecolor={{kanto color light}}
|bordercolor={{kanto color dark}}
|name=Professor Samuel Oak
|jname=オーキド・ユキナリ博士
|tmname=Dr. Yukinari Ohkido
|slogan=no
|image=Lets Go Pikachu Eevee Professor Oak.png
|size=180px
|caption=Art from {{LGPE|Let's Go, Pikachu! and Let's Go, Eevee!}} by [[Megumi Mizutani]]<ref>[[a:File:ProfessorOakSetupCosmicEclipse201.jpg|Professor Oak's Setup (Cosmic Eclipse 201)]]</ref>
|gender=Male
|colors=yes
|eyes=Black
|hair=Gray
|hometown=[[Pallet Town]]
|region=[[Kanto]]
|relatives={{ga|Blue}} (grandson)<br>[[Daisy Oak|Daisy/May]] (granddaughter)<br>[[Samson Oak|Samson]] (cousin)
|trainer=yes
|trainerclass=Former {{pkmn|Trainer}}, [[Pokémon Professor]]
|game=yes
|generation={{Gen|I}}, {{Gen|II}}, {{Gen|III}}, {{Gen|IV}}, {{Gen|VII}}, {{Gen|VIII}}
|games={{game3|Red and Blue|Red, Blue|s}}, {{v2|Yellow}},<br> [[Pokémon Gold and Silver Versions|Gold, Silver]], {{v2|Crystal}}, <br> {{game3|FireRed and LeafGreen|FireRed, LeafGreen|s}},<br> {{game3|Diamond and Pearl|Diamond, Pearl|s}}, {{v2|Platinum}},<br> {{game3|HeartGold and SoulSilver|HeartGold, SoulSilver|s}},<br> {{LGPE|Let's Go, Pikachu!, Let's Go, Eevee!}},<br> [[Pokémon Brilliant Diamond and Shining Pearl|Brilliant Diamond, Shining Pearl]],<br> {{pkmn|Snap}}, {{pkmn|Stadium}},<br> [[PokéROM]], {{pkmn|Puzzle League}}, <br>[[Hey You, Pikachu!]], {{pkmn|Stadium 2}},<br> {{pkmn|Channel}}, {{pkmn|Masters EX}}
|leader=no
|type=Unknown
|team=no
|brain=no
|gameanim=yes
|pv=yes
|pvnum=PO01
|pvname=File 1: Red
|envagame=[[Kyle Hebert]] <small>({{pkmn|Origins}})</small><br>Ben Diskin <small>([[The Two Professors]])</small><br>Joe J. Thomas<ref name="Joe J. Thomas">[http://joeactor.com/ Joe J Thomas: Voice Acting Portfolio]</ref> <small>({{pkmn|Masters EX}})</small><br>Keith Silverstein <small>({{pkmn|Evolutions}})</small>
|javagame=Katsuji Mori <small>({{pkmn|Origins}})</small><br>Tadashi Wakabayashi <small>([[The Two Professors]])</small><br>[[Ken'ichi Ogata]]<ref name="Ken'ichi Ogata">[https://www.youtube.com/watch?v=kN5qi87nTQc&t=0s Pokémon Masters EX official Youtube channel] (Japanese)</ref> <small>({{pkmn|Masters EX}})</small><br>Keiichi Sonobe <small>({{pkmn|Evolutions}})</small>
|anime=counterpart
|animecounterpart={{an|Professor Oak}}
|epnum=EP001
|epname=Pokémon - I Choose You!
|manga=counterpart
|mangacounterpart={{adv|Professor Oak}}, {{OBP|Professor Oak|Pocket Monsters}}
}}

'''Professor Samuel Oak''' (Japanese: '''オーキド・ユキナリ博士''' ''Dr. Yukinari Ohkido'') is a [[Pokémon Professor]] who lives and works at his [[Professor Oak's Laboratory|research lab]] in [[Pallet Town]] of the [[Kanto]] [[region]].

==Terminology==
In the Japanese version, Professor Oak's given name '''ユキナリ''' (''Yukinari'') first appeared in "Pocket Monsters Zukan", a guidebook published by Aspect. The given name had later appeared in various media such as [[The Electric Tale of Pikachu]], [[Pocket Monsters: The Animation]], the [[M04|fourth Pokémon movie]], and [[Pokémon Adventures]], before it was confirmed as his canon name in the core series with [[Samson Oak]] mentioning it in {{pkmn|Sun and Moon}}.<ref>'''[[Samson Oak/Quotes|Samson Oak]]''': ''"Oh, that cousin of mine in Kanto... He and I look remarkably alike, or so everyone always says. He's Samuel Oak, though."'' ({{game4|SMUSUM}}</ref>

==In the core series games==
Professor Oak works in [[Professor Oak's Laboratory|his Laboratory]] in [[Pallet Town]] with his aides. He gives {{ga|Red}} and {{ga|Blue}} their [[first partner Pokémon]] in {{game3|Red and Blue|Pokémon Red, Blue|s}}, {{game3|Red and Green|Green|s}}, {{v2|Yellow}}, {{2v2|FireRed|LeafGreen}}. In the last pair of games, he also grants the {{player}} the [[National Pokédex]] once they've caught at least 60 Pokémon. He is an idol to many Trainers and researchers, including [[Professor Elm]], and always plays an important supporting role in the many games that he appears in.

He was a childhood friend of [[Agatha]]. They remained good friends and top-class Pokémon Trainers until Oak stopped battling and became interested in Pokémon research. Agatha said that he became soft and started to regard him as a fool. However, Oak still affiliates with the [[Pokémon League]] as an adviser. In [[Pokémon Masters EX]], during her [[Sync pair|Sync Pair]] Story "A Day with Agatha", {{mas|Agatha}} explains how she and Oak met. Oak was always friendly and open when he was young and would talk to Agatha and try to help her. Though he was only trying to be nice, it still annoyed Agatha because she wanted to be left alone. Agatha would battle Oak to try and get him to go away, but he was always better than her, and so she would battle him again and again. Eventually, the time they spent together began to mean a lot to Agatha. As a result, when Oak got the idea to invent the [[Pokédex]] and subsequently stopped battling, Agatha felt betrayed.

In his own Pokémon Masters EX Sync Pair Story, "A Day With Professor Oak", {{mas|Professor Oak}} reveals that his trusted Pokémon partner is a {{p|Nidorino}}.

[[File:HGSS Prerelease Mr Pokemon House.png|thumb|200px|Oak with {{ga|Ethan}} and Mr. Pokémon in [[Generation IV]]]]
Professor Oak was always well known in [[Kanto]], but in [[Generation II]] and {{game|HeartGold and SoulSilver|s}}, he becomes more of a celebrity, a "star Pokémon Researcher". He became famous in [[Johto]] because of his Radio Show with [[DJ Mary]]. He was going to turn down the show at first, but Mary's energy and persistence wore him down. {{ga|Ethan}}/{{ga|Kris}}/{{ga|Lyra}} first meets him visiting the home of [[Mr. Pokémon]], another of Oak's childhood friends. Later he grants the young Trainer access to [[Mt. Silver]], a place which only the finest Pokémon Trainers may enter, after the player has earned all the Badges in Johto and later Kanto. In the [[remake]]s, he also gives the player the National Pokédex after they've entered the [[Hall of Fame]], gives them {{HM|08|Rock Climb}} once they've earned all 16 [[Badge]]s, allows them to choose one of the Kanto [[first partner Pokémon]] once they've beaten Red, and hands over the [[Jade Orb]] if the player has caught both {{p|Groudon}} and {{p|Kyogre}} at the [[Embedded Tower]].

Professor Oak has many old friends. One of them is [[Kurt]], a [[Poké Ball]] smith from [[Azalea Town]], and another is Professor Elm, who used to be Oak's assistant. In fact, there is a picture on Kurt's wall saying "...a young Prof Oak?" and an email addressed to him from Professor Elm can be found in his lab:
:"''...
:''<sc>Prof. Oak</sc>, how is your research
:''coming along? I'm still plugging
:''away. I heard rumors
:''that {{player|<player>}} is
:''getting quite a reputation.
:''I'm delighted to hear that.
:''<sc>Elm</sc> in <sc>[[New Bark Town]]</sc> 8-)''"

Professor Oak has many fans and admirers. One of them is {{tc|School Kid|Schoolboy}} Chad, who frequently calls the player to share trivia about Oak.

Professor Oak is also a good friend of [[Professor Rowan]]. He visits [[Sinnoh]] often, has a home in [[Eterna City]], introduces Trainers to [[Pal Park]]{{sup/4|DPPt}}/[[Ramanas Park]]{{sup/8|BDSP}}, and gives them the National Pokédex, as well as the [[Upgrade|Up-Grade]], [[Poké Radar]], and the {{DL|Pokétch|Trainer Counter}} app for their [[Pokétch]]. [[Oak's Letter|A letter]] that he sends to the player in a special event allows the player to find {{p|Shaymin}}. An aide in Rowan's laboratory mentions that Oak is Rowan's junior in terms of seniority. In {{v2|Platinum}}, after providing the Up-Grade, Professor Oak will talk about the [[legendary birds]] and say that they have been sighted in [[Sinnoh]]. From this point {{p|Articuno}}, {{p|Zapdos}}, and {{p|Moltres}} will be visible roaming on the map.

Professor Oak also appears in {{LGPE}}, where he serves the same role for {{ga|Chase}}/{{ga|Elaine}} and {{ga|Trace}} that he originally served for Red and Blue. He originally has two first partner Pokémon to give to them, but after the player catches their own {{ga|partner Pokémon}}, the third Pokémon goes unrevealed.

====Fame Checker====
This is a list of the [[Fame Checker]]'s information on Professor Oak in {{game|FireRed and LeafGreen|s}}.
;Pallet Town - Sign
* What does this person do?
:"<sc>[[Professor Oak's Laboratory|Oak Pokémon Research Lab]]</sc>."
;Pallet Town Research Lab - Prof. Oak
* What is this person like?
:"To make a complete guide on all the <sc>Pok</sc>é<sc>mon</sc> in the world...
:That was my dream!"
;Pallet Town Research Lab - Aide
* What is this person like?
:"<sc>Prof. Oak</sc> may not look like much, but he's the authority on <sc>Pok</sc>é<sc>mon</sc>.
:Many <sc>Pok</sc>é<sc>mon Trainers</sc> hold him in high regard."
;[[Viridian City]] - {{DL|Magazines in the Pokémon world|Pokémon Journal}}
* Family and friends?
:"<sc>Prof. Oak</sc> reportedly lives with his grandchildren, <sc>[[Daisy Oak|Daisy]]</sc> and <sc>{{ga|Blue}}</sc>."
;[[Indigo Plateau|Pokémon League]] - [[Agatha]]
* Family and friends?
:"I hear <sc>Oak</sc>'s taken a lot of interest in you, child.
:That old duff was once tough and handsome.
:But that was decades ago. He's a shadow of his former self."
;Pallet Town Research Lab - Aide{{tt|*|After entering the Hall of Fame}}
* What does this person do?
:"<sc>Prof. Oak</sc> is going to have his own radio show soon.
:The program will be called <sc>Prof. Oak's Pok</sc>é<sc>mon Seminar</sc>."
;Message from <sc>Oak</sc>
* From: <sc>Prof. Oak</sc>
* To: [Player]
:"Why do <sc>Pok</sc>é<sc>mon</sc> compete and battle so hard for you?
:They do so because they can see the love and trust you have towards <sc>Pok</sc>é<sc>mon</sc>.
:Never forget that."

===Pokémon===
Professor Oak gives the player their [[first partner Pokémon]] in every [[Kanto]]-based game.

====Pokémon Red and Blue====
{|
| style="vertical-align:top" |{{Pokémon/1
|game=Red
|ndex=001
|pokemon=Bulbasaur
|type1=Grass|type2=Poison
|level=5
|move1=Tackle|move1type=Normal
|move2=Growl|move2type=Normal}}
| style="vertical-align:top" |{{Pokémon/1
|game=Red
|ndex=004
|pokemon=Charmander
|type1=Fire
|level=5
|move1=Scratch|move1type=Normal
|move2=Growl|move2type=Normal}}
| style="vertical-align:top" |{{Pokémon/1
|game=Red
|ndex=007
|pokemon=Squirtle
|type1=Water
|level=5
|move1=Tackle|move1type=Normal
|move2=Tail Whip|move2type=Normal}}
|}

====Pokémon Yellow====
{{main|Pikachu (Yellow)}}
Professor Oak catches this {{p|Pikachu}} while stopping the player from beginning their {{pkmn|journey}} without any Pokémon. He later decides to give it to them.

{{Pokémon/1
|game=Yellow
|ndex=025
|pokemon=Pikachu
|type1=Electric
|level=5
|move1=ThunderShock|move1type=Electric
|move2=Growl|move2type=Normal}}

This {{p|Eevee}} was intended for the player, but is taken by {{ga|Blue}} in his impatience. Its evolutionary path is determined by the player's interactions with its Trainer.

{{Pokémon/1
|game=Yellow
|ndex=133
|pokemon=Eevee
|level=5
|type1=Normal
|move1=Tackle|move1type=Normal
|move2=Tail Whip|move2type=Normal}}

====Pokémon FireRed and LeafGreen====
{|
| style="vertical-align:top" |{{Pokémon/3
|game=FireRed
|ndex=001
|pokemon=Bulbasaur
|gender=both
|level=5
|type1=Grass
|type2=Poison
|ability=Overgrow
|move1=Tackle|move1type=Normal
|move2=Growl|move2type=Normal}}
| style="vertical-align:top" |{{Pokémon/3
|game=FireRed
|ndex=004
|pokemon=Charmander
|gender=both
|level=5
|type1=Fire
|ability=Blaze
|move1=Scratch|move1type=Normal
|move2=Growl|move2type=Normal}}
| style="vertical-align:top" |{{Pokémon/3
|game=FireRed
|ndex=007
|pokemon=Squirtle
|gender=both
|level=5
|type1=Water
|ability=Torrent
|move1=Tackle
|move1type=Normal
|move2=Tail Whip|move2type=Normal}}
|}

====Pokémon HeartGold and SoulSilver====
After the player has defeated Red, Professor Oak gifts them with one of the Kanto first partner Pokémon.

{|
| style="vertical-align:top" |{{Pokémon/4
|game=HeartGold
|ndex=001
|pokemon=Bulbasaur
|gender=both
|level=5
|type1=Grass
|type2=Poison
|ability=Overgrow
|move1=Tackle|move1type=Normal|move1cat=Physical
|move2=Growl|move2type=Normal|move2cat=Status}}
| style="vertical-align:top" |{{Pokémon/4
|game=HeartGold
|ndex=004
|pokemon=Charmander
|gender=both
|level=5
|type1=Fire
|ability=Blaze
|move1=Scratch|move1type=Normal|move1cat=Physical
|move2=Growl|move2type=Normal|move2cat=Status}}
| style="vertical-align:top" |{{Pokémon/4
|game=HeartGold
|ndex=007
|pokemon=Squirtle
|gender=both
|level=5
|type1=Water
|ability=Torrent
|move1=Tackle|move1type=Normal|move1cat=Physical
|move2=Tail Whip|move2type=Normal|move2cat=Status}}
|}

====Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!====
{|
| style="vertical-align:top" |{{Pokémon/7/LG
|ndex=0025
|pokemon=Pikachu
|gender=both
|form=-Partner
|level=5
|type1=Electric
|move1=Thunder Shock|move1type=Electric|move1cat=Special
|move2=Growl|move2type=Normal|move2cat=Status
|move3=Tail Whip|move3type=Normal|move3cat=Status}}
| style="vertical-align:top" |{{Pokémon/7/LG
|ndex=0133
|pokemon=Eevee
|gender=both
|form=-Partner
|level=5
|type1=Normal
|move1=Tackle|move1type=Normal|move1cat=Physical
|move2=Growl|move2type=Normal|move2cat=Status
|move3=Tail Whip|move3type=Normal|move3cat=Status}}
|}

====Unused teams====
{{main|Unused Trainer data#Prof. Oak|Unused Trainer data → Prof. Oak}}
[[File:PkmnProfWantsToFight.png|thumb|160px|Professor Oak, who cannot normally be battled]]
Unused Trainer data for Prof. Oak (Japanese: '''{{j|オーキドせんせい}}''' ''Teacher Oak'') exists in all Generation I games.

Prof. Oak has data for three different teams using different first partner Pokémon, with each Pokémon being [[level]] 66-70, higher than Blue's {{pkmn|Champion}} battle team. It is possible he was meant to be a late-game opponent, perhaps similar to Red in [[Generation II]].

He can be battled by exploiting certain [[glitch]]es.
{{-}}

==In the side series games==
===Pokémon Stadium series===
[[File:Stadium Professor Oak.png|thumb|left|200px|Professor Oak in Pokémon Stadium]]
[[File:Stadium 2 Professor Oak.png|thumb|200px|Professor Oak Pokémon Stadium 2]]
In [[Pokémon Stadium]] and [[Pokémon Stadium 2]], Professor Oak is the owner of the {{OBP|Pokémon Lab|Stadium}}, which is available if the Stadium game is connected to one or more [[core series]] games via [[Transfer Pak]]. The laboratory contains various machines with features such as trading Pokémon between games, transferring items and Pokémon to and from the player's [[PC]], viewing the {{OBP|Pokédex|Stadium}}, etc. In both games, Professor Oak describes the machines in the laboratory.

The Transfer Pak features were previously introduced in the [[Pokémon Stadium (Japanese)|Japanese Pokémon Stadium]], but they were part of the menu at the beginning at the game and didn't involve Professor Oak or his laboratory.
{{-}}

==In the spin-off games==
===Hey You, Pikachu!===
Professor Oak appears in [[Hey You, Pikachu!]], where he enlists the player to help test a translation device called the PokéHelper, using a wild {{p|Pikachu}} as the main research subject.

===Pokémon Trading Card Game series===
In {{vg|Pokémon Trading Card Game}} and [[Pokémon Trading Card Game 2: The Invasion of Team GR!]], the {{OBP|Professor Oak|Base Set 88}} card is available. Additionally, there are cards featuring the [[Impostor Professor Oak]].

===Pokémon Snap===
[[File:Snap Professor Oak.png|thumb|200px|Professor Oak in Pokémon Snap]]
Professor Oak also is one of the two human characters that appear in [[Pokémon Snap]]. In order to complete his [[Pokémon Report]] on the denizens of [[Pokémon Island]], he hires {{Todd}} to take pictures for the report. He provides Todd with the [[ZERO-ONE]] and its [[Dash Engine]] upgrade, [[Pokémon food]], [[Pester Ball]]s, and a [[Poké Flute]]. When Todd takes a picture of each of the [[Pokémon sign]]s, Professor Oak is able to drawn a connection between them and the {{pkmn|constellation}}s to determine that {{p|Mew}} must be on [[Rainbow Cloud]].

===Puzzle series===
In [[Pokémon Puzzle Challenge]], Professor Oak appears at the main menu and some other screens at the beginning of the game, explaining the available options to the player. He also talks to the player at various points in the "Puzzle" section, which consists of various rounds with puzzles.

At the beginning of [[Pokémon Puzzle League]], there is a short animated introduction where [[Ash Ketchum]] receives a phone call from Professor Oak, telling him that he has been selected as a challenger of the Puzzle League Tournament at [[Puzzle League]]. In Prof. Oak's Labs at the Puzzle Village, Professor Oak explains how to play this game.

===Play It! series===
In [[Pokémon Play It!]] and [[Pokémon Play It! Version 2]], the player is able to receive two certificates signed by Professor Oak; each certificate is awarded for answering a separate set of 10 questions correctly.

In both games, as seen in the option about "The playing field" in the {{OBP|Help|Play It!}} section, {{OBP|Julie|Play It!}} says that she was in the middle of a Pokémon TCG match with Professor Oak but he had to leave.

===PokéROM===
Professor Oak is the narrator of [[PokéROM]], voiced by [[Stuart Zagnit]], his voice actor in the anime at the time.

===Pokémon Channel===
[[File:Prof. Oak Report.png|thumb|200px|Professor Oak Pokémon Channel]]
In [[Pokémon Channel]], Professor Oak launches the titular Pokémon Channel, and tuning into the "Oak's Report" channel allows the player to save their game.

===Pokémon GO===
In [[Pokémon GO]], it is mentioned that he was [[Professor Willow]]'s mentor.<ref>[https://twitter.com/PokemonGoApp/status/988821137391013888 #ProfessorWillowWeek Fact #1 on Twitter]</ref>

In the GO Web series, [[The Two Professors]], Willow contacts Oak to discuss the recent appearance of {{p|Ditto}} {{m|transform}}ed into an unrecognizable Pokémon. Oak is able to identify it as the [[Mythical Pokémon]], {{p|Meltan}}.
<!--
====Voice actors====
{{vatable|color={{kanto color light}}|bordercolor={{kanto color}}
|ja=若林 正 ''Tadashi Wakabayashi''
|en=Ben Diskin}}
-->

===[[Pokémon Masters EX]]===
{{main|Professor Oak (Masters)}}
Professor Oak, in his {{game|FireRed and LeafGreen|s}} design, forms a [[sync pair]] with {{p|Mew}} in [[Pokémon Masters EX]]. Professor Oak became a playable sync pair on February 14, 2020.

Professor Oak first appeared as an NPC during the second chapter of [[PML Arc]]. He later made a notable appearance in one of the game's Main Stories, the [[Villain Arc]].

{{PairDex/h|Kanto}}
{{PairDex|082|Professor Oak|trainerlink=Professor Oak (Masters)#Mew (Pre-Sync Move → Post-Sync Move)|trainerimg=Oak|0151|Mew|Psychic|Bug|Tech|3|Log-in from February 14 to March 16, 2020<br>and from August 28, 2020 indefinitely}}
|}

==Gallery==
===Artwork===
{| style="margin:auto; text-align:center; {{roundy|2px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color}}; font-size:80%;"
|-
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Red Green Prof Oak.png|x250px]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Gold Silver Professor Oak.png|x250px]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:FireRed LeafGreen Professor Oak.png|x250px]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Professor Oak PO.png|x250px]]
| style="{{roundy|2px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Professor Oak LGPE concept art.jpg|x250px]]
|- 
| Official artwork from<br>{{Colorlink|Pokémon Red and Blue Versions|000|Red and Blue}} by {{Colorlink|Ken Sugimori|000}}<ref>[[a:File:ProfessorOakBaseSet88.jpg|Professor Oak (Base Set 88)]]</ref>
| Official artwork from<br>{{Colorlink|Pokémon Gold and Silver Versions|000|Gold and Silver}}
| Official artwork from<br>{{Colorlink|Pokémon FireRed and LeafGreen Versions|000|FireRed and LeafGreen}} by {{Colorlink|Ken Sugimori|000}}<ref>[[a:File:ProfessorOakNewTheoryHeartGoldSoulSilver101.jpg|Professor Oak's New Theory (HeartGold & SoulSilver 101)]]</ref>
| Official artwork from<br>{{Colorlink|Pokémon Origins|000}}
| Settei from<br>{{Color2|000|Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!}}
|}

===Sprites and models===
====In the core series====
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color}}; font-size:80%;"
|-
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr RG Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr Y Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr GS SW97 Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr GS Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:FRLG Professor Oak Portrait.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr FRLG Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr FRLG Oak Beta.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Spr HGSS Oak.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Oak PE OD.png|120px]]
| style="{{roundy|80px}} border:2px solid #{{Kanto color dark}}; background:#{{Kanto color light}}; width:80px"| [[File:Professor Oak BDSP OD.png|100px]]
|- 
| Intro sprite from<br>{{color2|000|Pokémon Red and Blue Versions|Red and Blue}}
| Intro sprite from<br>{{color2|000|Pokémon Yellow Version|Yellow}}
| Prototype sprite from<br>{{color2|000|Pokémon Gold and Silver Spaceworld '97 demo|Spaceworld '97 demo}}
| Intro sprite from<br>{{color2|000|Generation II}}
| Intro sprite from<br>{{color2|000|Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen}}
| {{Colorlink|Fame Checker|000}} sprite from<br>{{color2|000|Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen}}
| Beta {{color2|000|Fame Checker}} sprite from<br>{{color2|000|Generation III|FireRed and LeafGreen}}
| Intro sprite from<br>{{color2|000|Pokémon HeartGold and SoulSilver Versions|HeartGold and SoulSilver}}
| Overworld model from<br>{{color2|000|Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!|Let's Go, Pikachu! and Let's Go, Eevee!}}
| Overworld model from<br>{{color2|000|Pokémon Brilliant Diamond and Shining Pearl|Brilliant Diamond and Shining Pearl}}
|-
| style="{{roundy|80px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:69px"| [[File:Oak I OD.png]]
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:69px"| [[File:Y Oak Back.png]]
|
| style="{{roundy|80px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:69px"| [[File:Oak II OD.png]]
| colspan=3 style="{{roundy|80px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:69px"| [[File:Oak III OD.png]]
| style="{{roundy|80px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:69px"| [[File:Oak OD.png]]
|- 
| Overworld sprite from<br>{{color2|000|Generation I}}
| Back sprite from<br>{{color2|000|Pokémon Yellow Version|Yellow}}
|
| Overworld sprite from<br>{{color2|000|Generation II}}
| colspan=3 | Overworld sprite from<br>{{color2|000|Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen}}
| Overworld sprite from<br>{{color2|000|Generation IV}}
|}

====In other games====
{{incomplete|section|needs=Sprites of Prof. Oak from the tutorial of Puzzle League, the intro of Snap, and Pokémon Lab in Stadium and Stadium 2.}}
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background:#{{Kanto color}}; font-size:80%"
|-
| style="{{roundy|20px}} border:2px solid #{{Kanto color dark}}; background:#{{Kanto color light}}; width:96px; height:96px"| [[File:Hey You Pikachu Oak.png|75px]]
| style="{{roundy|20px}} border:2px solid #{{Kanto color dark}}; background:#{{Kanto color light}}; width:96px; height:96px"| [[File:Puzzle Challenge Oak.png]]
| style="{{roundy|20px}} border:2px solid #{{Kanto color dark}}; background:#{{Kanto color light}}; width:96px; height:96px"| [[File:TCG1 A39 Professor Oak.png]]
| style="{{roundy|20px}} border:2px solid #{{Kanto color dark}}; background:#{{Kanto color light}}; width:96px; height:96px"| [[File:TCG2 A54 Professor Oak.png]]
|- 
| Dialogue sprite from<br>{{color2|000|Hey You, Pikachu!}}
| Menu sprite from<br>{{color2|000|Pokémon Puzzle Challenge|Puzzle Challenge}}
| {{color2|000|Professor Oak (Base Set 88)|Professor Oak}} sprite<br/>from the {{color2|000|Pokémon Trading Card Game (video game)|Trading Card Game}}
| Professor Oak sprite<br/>from {{color2|000|Pokémon Trading Card Game 2: The Invasion of Team GR!|Card GB2: Here Comes Team GR!}}
|}

===Other images===
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color}}; font-size:80%;"
|-
| style="{{roundy|20px}} border: 2px solid #{{Kanto color dark}}; background: #{{Kanto color light}}; width:96px; height:96px"| [[File:Oak signature.png]]
|- 
| Professor Oak's signature<br/>from {{color2|000|Pokémon Play It!|Play It!}} and {{color2|000|Pokémon Play It! Version 2|Play It! 2}}
|}

==Quotes==
{{main|Professor Oak/Quotes}}

==In the anime==
[[File:Professor Oak JN anime.png|250px|thumb|Professor Oak in ''[[Pokémon Journeys: The Series]]'']]
===Main series===
{{main|Professor Oak (anime)}}
Professor Oak appears semi-regularly in the [[Pokémon anime]], where he gives [[Ash Ketchum]] useful information for his {{pkmn|journey}}.
{{-}}
[[File:Professor Oak Origins.png|250px|thumb|Professor in Pokémon Origins]]

===Pokémon Origins===
Professor Oak appears as a major character in the [[Pokémon Origins]] miniseries, where he serves a similar role as in {{game|Red and Blue|s}}. He assigned {{OBP|Red|Origins}} and {{OBP|Blue|Origins}} with the task of completing his dream of a complete Pokédex. Eventually, Red did manage to catch {{cat|Generation I Pokémon|all 150 known Pokémon}}, but then realized that {{p|Mew}} was still out there, and decided to continue his effort in bringing Professor Oak's dream to a true completion.

====Pokémon====
=====On hand=====
{{TrainerPoké
|trainer=Professor Oak
|pkmn=Eevee
|type1=Normal
|img=Professor Oak Eevee PO.png
|epnum=PO01
|epname=File 1: Red
|desc=Professor Oak sent out his {{p|Eevee}} during his introduction of the [[Pokémon world]].

None of Eevee's moves are known.}}

=====Gives to new Trainers=====
{| width="100%"
|-
| {{InactivePoké|Professor Oak|Bulbasaur|Oak Bulbasaur PO.png|Grass|Poison|link=no}}
| {{InactivePoké|Professor Oak|Squirtle|Oak Squirtle PO.png|Water|link=no}}
| {{InactivePoké|Professor Oak|Charmander|Oak Charmander PO.png|Fire|link=no}}
|
|}

=====Gave away to new Trainers=====
{| width="100%"
|-
| {{InactivePoké|Red|Charmander|Red Charmander PO.png|Fire|nick=Red's Charmander}}
| {{InactivePoké|Blue|Squirtle|Blue Squirtle PO.png|Water|nick=Blue's Squirtle|link=no}}
|
|}

====Voice actors====
{{vatable|color={{kanto color light}}|bordercolor={{kanto color}}
|ja=森功至 ''Katsuji Mori''
|en=[[Kyle Hebert]]
|it=Mario Scarabelli
|es_eu=José Padilla}}

===Pokémon Generations===
Though Professor Oak did not physically appear in [[Pokémon Generations]], he was mentioned by [[Agatha]] during her {{pkmn|battle}} against {{ga|Blue}} in ''[[PG03|The Challenger]]''.

===GOTCHA!===
Professor Oak briefly appeared in [[GOTCHA!]].

[[File:Professor Oak Evolutions.png|thumb|250px|Professor Oak in [[Pokémon Evolutions]]]]
===Pokémon Evolutions===
Professor Oak appeared in ''[[PE08|The Discovery]]''. {{ga|Green}} met him at his laboratory in [[Pallet Town]], apologizing for having failed to complete the [[Pokédex]]. Professor Oak, however, revealed that other Pallet Town Trainers had been taking on the same project as well, and thanks to them, the Pokédex was now complete. Just then, he received a call from [[Professor Willow|a colleague of his]], who informed him of {{p|Meltan|a new Pokémon made entirely of metal}}. However, when Professor Oak turned around to share the news with Green, {{ga|Elaine}}, and {{ga|Trace}}, he was surprised to see them having already left.

====Pokémon====
=====Gives to new Trainers=====
{| width="100%"
|-
| {{InactivePoké|Professor Oak|Bulbasaur|Kanto first partners Evolutions.png|Grass|Poison|link=no}}
| {{InactivePoké|Professor Oak|Squirtle|Kanto first partners Evolutions.png|Water|link=no}}
| {{InactivePoké|Professor Oak|Charmander|Kanto first partners Evolutions.png|Fire|link=no}}
|
|}

====Voice actors====
{{vatable|color={{kanto color light}}|bordercolor={{kanto color}}
|ja=園部啓一 ''Keiichi Sonobe''
|en=Keith Silverstein
|it=Paolo Sesana
|es_eu=Francisco Javier Garaboa}}

==In the manga==
As he is the leading professor of the [[Kanto]] region, Professor Oak appears in many different [[Pokémon manga]] series.

===The Electric Tale of Pikachu===
[[File:Professor Oak EToP.png|thumb|200px|Professor Oak in The Electric Tale of Pikachu]]
{{main|Professor Oak (anime)#The Electric Tale of Pikachu|Professor Oak (anime)}}
Professor Oak makes a few appearances in [[The Electric Tale of Pikachu]]. He is a role model to {{OBP|Ash Ketchum|EToP|Ash}} and is [[Bill]]'s mentor. Unlike in the anime, he does not give Ash his {{OBP|Ash's Pikachu|EToP|Pikachu}}; in fact, he does not meet Ash until after he has already begun his Pokémon journey.
{{-}}

===Pokémon Adventures===
[[File:Professor Oak Adventures.png|thumb|150px|Professor Oak in Pokémon Adventures]]
{{main|Professor Oak (Adventures)}}
Professor Oak has a recurring role in [[Pokémon Adventures]]. His first appearance was in ''[[PS001|A Glimpse of the Glow]]'', and he has appeared in most arcs since. Over the course of the manga, Professor Oak helps out the [[Pokédex holder]]s in their various quests. His backstory has been largely expanded in this canon. He's a highly respected figure in the field of Pokémon research the world over, the inventor of the [[Pokédex]], and a former {{pkmn|Champion|Pokémon League Champion}}.
{{-}}

===Pokémon Gold & Silver: The Golden Boys===
Professor Oak first appeared in ''[[GB02|Falkner The Bird Keeper's Challenge!!]]'', where he witnessed {{p|Articuno}}'s appearance at the [[Violet Gym]]. He also saw the battle between Articuno and {{GnB|Gold}}'s Pokémon. He then offered to bring the Pokémon Egg [[Mr. Pokémon]] had to Professor Elm in ''[[GB04|Let's Aim For The Goal!]]''. Before he leaving, he gave Gold a Pokédex, with the belief that Gold would become a great Trainer.

===Pokémon Pocket Monsters===
[[File:Professor Oak PM.png|thumb|150px|Professor Oak in the Pocket Monsters manga]]
{{main|Professor Oak (Pocket Monsters)}}
Professor Oak is a character in [[Pokémon Pocket Monsters]], where he is in regular contact with {{OBP|Red|Pocket Monsters}} and {{OBP|Green|Pocket Monsters}}.
{{-}}

===Pokémon Zensho===
{{spoilers}}
[[File:Professor Oak Zensho.png|thumb|160px|Professor Oak in Pokémon Zensho]]
Professor Oak appears in [[Pokémon Zensho]] and has fulfilled the same role similar to the ones in other media. Professor Oak debuted in ''[[PZ01|Prologue: Pallet Town]]'', where he saved {{OBP|Satoshi|Zensho}} from a flock of {{p|Pidgey}} that were about to attack him. As thanks for Professor Oak's rescue of Satoshi, Satoshi went to his lab and chose Charmander as his first partner Pokémon, due to it saving him earlier. Shigeru, Satoshi's rival, chose Squirtle, which made Professor Oak keep {{p|Bulbasaur}}, as he would have been too lonely otherwise.

In ''[[PZ05|Celadon City]]'', it was revealed that Professor Oak is taking care of {{OBP|Shigeru|Zensho}} and [[Daisy Oak]] since their parents died in a car crash. He was last seen in ''[[PZ10|Indigo Plateau]]'', telling Satoshi and Shigeru about a {{p|Mewtwo|rare Pokémon}} that dwells in [[Cerulean Cave|a cave]].

====Pokémon====
=====On hand=====
{{TrainerPoké
|width=78
|trainer=Professor Oak
|pkmn=Venusaur
|stage1=Bulbasaur
|stage2=Ivysaur
|type1=Grass
|type2=Poison
|img=Oak Bulbasaur 2 Zensho.png
|cap=Professor Oak's Bulbasaur
|img2=Oak Venusaur Zensho.png
|epnum=PZ01
|epname=Pallet Town
|desc=Professor Oak kept {{p|Bulbasaur}} after {{Zensho|Satoshi}} and {{Zensho|Shigeru}} got their first partner Pokémon as he would have been too lonely without it. It was revealed to have evolved into {{p|Ivysaur}} and then {{p|Venusaur}} sometime when Satoshi went to [[Indigo Plateau]]. Venusaur was then seen with Professor Oak around the end of the chapter when he was explaining to Satoshi and Shigeru about a [[Cerulean Cave|rare cave]] that contained the [[Legendary Pokémon]], {{p|Mewtwo}}.

None of Venusaur's moves are known.}}

=====Gives to new Trainers=====
{| style="float:left; width: 75%"
|-
| {{InactivePoké|Professor Oak|Bulbasaur|Oak Bulbasaur Zensho.png|grass|poison|link=no}}
| {{InactivePoké|Professor Oak|Charmander|Oak Charmander Zensho.png|fire|link=no}}
| {{InactivePoké|Professor Oak|Squirtle|Oak Squirtle Zensho.png|water|link=no}}
|}
{{left clear}}

=====Given away=====
{{TrainerPoké
|trainer=Satoshi
|pkmn=Charmander
|type1=Fire
|img=Satoshi Charmander Zensho.png
|epnum=PZ01
|epname=Pallet Town
|desc={{main|Satoshi's Charmander (Zensho)|Satoshi's Charmander}}

Professor Oak gave this {{p|Charmander}} to {{OBP|Satoshi|Zensho}} as his choice of being his first Pokémon since Charmander rescued Satoshi from a flock of {{p|Pidgey}} earlier.}}

{{TrainerPoké
|trainer=Shigeru
|pkmn=Squirtle
|type1=Water
|img=Shigeru Squirtle Zensho.png
|epnum=PZ01
|epname=Pallet Town
|desc={{OBP|Shigeru|Zensho}} chose {{p|Squirtle}} as it had the type-advantage against {{OBP|Satoshi's Charmander|Zensho}}.

Squirtle's only known move is {{m|Water Gun}}.}}

{{endspoilers}}

===Pokémon Newspaper Strip===
Professor Oak was first mentioned in {{strip|6}}. After a battle between {{p|Pikachu}} and {{p|Squirtle}}, a boy wanted to know why water shorts out electricity, and the girl he was with suggested asking Oak.

==In the TCG==
===Artwork===
Artwork from the cards:
{| style="margin:auto; text-align:center; {{roundy|5px}} border: 2px solid #{{kanto color dark}}; background: #{{kanto color}};"
|-
| style="{{roundy|5px}} border: 2px solid #{{kanto color dark}}; background: #{{kanto color light}}; width:80px"| [[File:Professor Oaks Research.png|150px]]
| style="{{roundy|5px}} border: 2px solid #{{kanto color dark}}; background: #{{kanto color light}}; width:80px"| [[File:Professor Oaks Visit.png|150px]]
|- style="font-size: 80%;"
| Researching
| Visiting {{colorlink|Sinnoh|000}}
|}

===Cards===
This listing is of cards mentioning or featuring Professor Oak in the [[Pokémon Trading Card Game]].

{{cardlist/header|Related cards|Grass|char=yes}}
{{cardlist/entry|cardname={{TCG ID|Base Set|Professor Oak|88}}|type=Trainer|enset=Base Set|enrarity=Uncommon|ennum=88/102|jpset=Expansion Pack|jprarity=Uncommon|enset2=Base Set 2|enrarity2=Uncommon|ennum2=116/130|ensetlink3=Pokémon Trading Card Game Classic|enset3=Venusaur & Lugia ex Deck|ennum3=024/034|jpsetlink3=Pokémon Card Game Classic|jpset3=Venusaur & Lugia ex Deck|jpnum3=026/032}}
{{cardlist/entry|cardname={{TCG ID|Expedition|Professor Oak's Research|149}}|type=Trainer|type2=Supporter|enset=Expedition Base Set|enrarity=Uncommon|ennum=149/165|jpsetlink=Expedition Base Set|jpset=Base Expansion Pack|jpnum=053/128|jprarity=Uncommon|enset2=EX FireRed & LeafGreen|enrarity2=Uncommon|ennum2=98/112|jpsetlink2=EX FireRed & LeafGreen|jpset2=Flight of Legends|jpnum2=078/082|jprarity2=Uncommon|jpsetlink3=Venusaur/Charizard/Blastoise Random Constructed Starter Decks|jpset3=Venusaur/Charizard/Blastoise Random<br>Constructed Starter Decks|jpnum3=051/052|jpsetlink4=Master Kit|jpset4=Side Deck|jpnum4=007/012|jpsetlink5=Gift Box Mew • Lucario|jpset5=Mew Quarter Deck|enset6=EX Dragon Frontiers|enrarity6=Uncommon|ennum6=80/101|jpset6=Imprison! Gardevoir ex Constructed Standard Deck|jpnum6=016/024}}
{{cardlist/entry|cardname={{TCG ID|Secret Wonders|Professor Oak's Visit|122}}|type=Supporter|enset=Secret Wonders|enrarity=Uncommon|ennum=122/132|jpset=Dialga LV.X Constructed Standard Deck|jpset2=Palkia LV.X Constructed Standard Deck|jpset3=Unnumbered Promotional cards|jpsetlink4=Magmortar vs Electivire Deck Kit|jpset4=Magmortar Half Deck|jpsetlink5=Magmortar vs Electivire Deck Kit|jpset5=Electivire Half Deck|ensetlink6=Platinum: Arceus|enset6=Arceus|enrarity6=Uncommon|ennum6=90/99|jpsetlink6=Platinum: Arceus|jpset6=Advent of Arceus|jprarity6=Uncommon|jpnum6=087/090}}
{{cardlist/entry|cardname={{TCG ID|HeartGold & SoulSilver|Professor Oak's New Theory|101}}|type=Supporter|enset=HeartGold & SoulSilver|enrarity=Uncommon|ennum=101/123|jpset=HeartGold Collection|jprarity=Uncommon|jpnum=068/070|jpset2=Steelix Constructed Standard Deck|jpnum2=015/019|jpset3=Tyranitar Constructed Standard Deck|jpnum3=015/019|enset4=Call of Legends|enrarity4=Uncommon|ennum4=83/95}}
{{cardlist/entry|cardname={{TCG ID|Evolutions|Professor Oak's Hint|84}}|type=Supporter|expanded=yes|enset=Evolutions|enrarity=Uncommon|ennum=84/108|jpset=Expansion Pack 20th Anniversary|jprarity=U|jpnum=084/087}}
{{cardlist/entry|cardname={{TCG ID|Cosmic Eclipse|Professor Oak's Setup|201}}|type=Supporter|expanded=yes|enset=Cosmic Eclipse|enrarity=Uncommon|ennum=201/236|jpset=Remix Bout|jprarity=U|jpnum=056/064|enset2=Cosmic Eclipse|enrarity2=Rare Ultra|ennum2=233/236|jpset2=Remix Bout|jprarity2=SR|jpnum2=072/064}}
{{cardlist/entry|cardname={{TCG ID|Celebrations|Professor's Research|23}} '''<small>Professor Oak</small>'''|type=Supporter|standard=yes|enset=Celebrations|enrarity=Rare Holo|ennum=023/025|jpset=25th Anniversary Collection|jpnum=003/028|enset2=Celebrations|enrarity2=Rare Ultra|ennum2=024/025|jpset2=25th Anniversary Collection|jprarity2=SR|jpnum2=029/028}}
{{cardlist/footer|Grass}}

There also exists a "dark counterpart" of Professor Oak, called '''[[Imposter Professor Oak]]''', who has also appeared in other Pokémon media. Apart from his first incarnation, expansions in which he has been featured also include {{TCG|Dark Pokémon}}. The following list is of cards mentioning or featuring Imposter Professor Oak.

{{cardlist/header|Related cards|Darkness|char=yes}}
{{cardlist/entry|cardname={{TCG ID|Base Set|Impostor Professor Oak|73}}|type=Trainer|enset=Base Set|enrarity=Rare|ennum=73/102|jpset=Expansion Pack|jprarity=Rare|enset2=Base Set 2|enrarity2=Rare|ennum2=102/130|enset3=Celebrations|enrarity3=Rare Classic|ennum3=73/102|jpset3=Promo Card Pack 25th Anniversary Edition|jpnum3=004/025}}
{{cardlist/entry|cardname={{TCG ID|Team Rocket|Imposter Oak's Revenge|76}}|type=Trainer|enset=Team Rocket|enrarity=Uncommon|ennum=76/82|jpset=Rocket Gang|jprarity=Uncommon}}
{{cardlist/entry|cardname={{TCG ID|Neo Destiny|Impostor Professor Oak's Invention|94}}|type=Trainer|enset=Neo Destiny|enrarity=Rare|ennum=94/105|jpset=Darkness, and to Light...|jprarity=Rare}}
{{cardlist/footer|Darkness}}

==Other appearances==
===[[Super Smash Bros. Melee]]===
Professor Oak appears as a random trophy wearing his regular clothing from the anime.

====Trophy information====
''The leading expert on the study of Pokémon. It seems there are always new and mysterious species of Pokémon being brought to light, and Professor Oak is at the heart of it all with his insightful research. The Pokédex is one of his inventions: new Trainers receive one, and a Pokémon to boot, when they start out.''

==Trivia==
* Professor Oak has appeared in the most [[generation]]s of any Pokémon Professor, appearing in Generation I and their Generation III and VII remakes as the regional professor and making cameo appearances in Generations II, IV, and the Generation IV remakes in Generation VIII.
* If the player speaks to Professor Oak in {{game|HeartGold and SoulSilver|s}} and has their Pokédex evaluated with at least 484 of the 493 Pokémon caught, he will say "Meeting you is something '''l''' will cherish all my life long.", using a lowercase L instead of an uppercase I.
* Professor Oak is the only person to give the player their Pokédex in more than one [[region]], doing so in both [[Kanto]] and [[Johto]].

==Names==
{| class="roundy" style="float:left; background: #{{kanto color light}}; border: 3px solid #{{kanto color}}"
|- style="text-align:center"
! Language
! Name
! Origin
|- style="background:#FFF;"
| Japanese
| オーキド・ユキナリ{{tt|博士|Hakase}}<br>''Dr. Yukinari Ohkido''
| From ''orchid'' and the family name 大木戸 ''Ōkido'' (large wooden city gate or castle door)<br>Incidentally, ''Yukinari'' resembles ''Yukinori'', the actual given name of [[Unshō Ishizuka]].
|- style="background:#FFF;"
| English, Italian
| Professor Samuel Oak
| From ''{{wp|oak}}'' and similar to his Japanese name. His given name may be from ''Salem Oak'' (historic tree in {{wp|Salem, New Jersey}})
|- style="background:#FFF"
| German
| Professor Samuel Eich
| From ''Eiche'' (oak) and his English name
|- style="background:#FFF"
| Spanish
| Profesor Samuel Oak
| From his English name
|- style="background:#FFF"
| rowspan="2" | French
| Professeur Samuel Chen
| From ''chêne'' (oak) and his English name
|- style="background:#FFF"
| Professeur Oak{{tt|*|Blue manual (Canadian French)}}
| From his English name
|- style="background:#FFF"
| Korean
| 오용호 {{tt|박사|Baksa}} ''Dr. O Yongho''
| From the first syllable of his Japanese name and the surname 오 ''{{wp|O (surname)|O}}''
|- style="background:#FFF"
| rowspan="2" | Chinese ({{tt|Mandarin|Taiwan and Mainland China}})
| 大木{{tt|博士|Bóshì}} ''Dr. Dàmù''<br>雪成 ''Xuěchéng''{{tt|*|Games, anime, Adventures (Ching Win version)}}
| From the Japanese names 大木戸 ''Ōkido'' and 雪成 ''Yukinari''
|- style="background:#FFF"
| 幸成 ''Xìngchéng''{{tt|*|Adventures (Jilin Publishing version)}}
| From the Japanese name 幸成 ''Yukinari''
|- style="background:#FFF"
| Chinese ({{tt|Cantonese|Hong Kong}})
| 大木{{tt|博士|Boksih}} ''Dr. Daaihmuhk''<br>雪成 ''Syutsìhng''
| From the Japanese names 大木戸 ''Ōkido'' and 雪成 ''Yukinari''
|- style="background:#FFF"
| Czech
| Profesor Oak
| From his English name
|- style="background:#FFF"
| Finnish
| Professori Samuel Oak
| From his English name
|- style="background:#FFF"
| Hungarian
| Oak Professzor
| From his English name
|- style="background:#FFF"
| Indonesian
| Profesor Oak{{tt|*|Anime (DP - Present)}}<br>Profesor Ohkido{{tt|*|Anime (Kanto saga)}}<br>Profesor Orchid
| From his English name<br>From his Japanese name<br>From his Japanese name
|- style="background:#FFF"
| Polish
| Profesor Oak
| From his English name
|- style="background:#FFF"
| Brazilian Portuguese
| Professor Samuel Carvalho{{tt|*|Pokémon GO, anime, TCG (Diamond & Pearl, XY to present), Adventures, The Official Pokémon Handbook, Pokémon Club, Pokémon Characters Guidebook}}<br>Professor Oak{{tt|*|TCG (HeartGold & SoulSilver, Call of Legends)}}
| From ''carvalho'' (oak) and his English name<br>Same as English name
|- style="background:#FFF"
| Russian
| Профессор Семуель Оук<br>''Professor Semuyel' Ouk''
| Transcription of his English name
|- style="background:#FFF"
| Thai
| ศาสตราจารย์โอคิโดะ ''Sattrachan Okhido''{{tt|*|Pokémon GO}}<br>ดร.โอคิโดะ ''Dr. Okhido''{{tt|*|TCG, Anime}}<br>ดร.ออคิด ''Dr. Okhit''<br>ยูกินาริ ''Yukinari''
| Transcription of his Japanese name
|- style="background:#FFF"
| Vietnamese
| Giáo sư Yukinari Ohkido
| Transcription of his Japanese name
|}{{-}}

==See also==
* [[Professor Oak (anime)]]
* [[Professor Oak (Adventures)]]
* [[a:Category:Professor Oak|Images on the Bulbagarden Archives]]

==References==
<references />

{{NPC|kanto|kanto=yes|johto=yes|sinnoh=yes}}
{{-}}
{{Pokémon professor}}
{{Capture tutor}}<br>
{{Golden Boys characters}}<br>
{{Project CharacterDex notice}}

[[Category:Manga characters]]
[[Category:Pokémon Zensho characters]]
[[Category:Pokémon Origins characters]]
[[Category:Red, Blue and Yellow characters]]
[[Category:Snap characters]]
[[Category:Gold, Silver and Crystal characters]]
[[Category:FireRed and LeafGreen characters]]
[[Category:Diamond and Pearl characters]]
[[Category:HeartGold and SoulSilver characters]]
[[Category:Let's Go, Pikachu! and Let's Go, Eevee! characters]]
[[Category:Brilliant Diamond and Shining Pearl characters]]
[[Category:Stadium characters]]
[[Category:Stadium 2 characters]]
[[Category:Trainers with unique classes]]
[[Category:Pokémon Evolutions characters]]
[[Category:Professors]]
[[Category:Pokémon Gold & Silver: The Golden Boys characters]]
[[Category:How I Became a Pokémon Card characters]]

[[de:Professor Samuel Eich]]
[[es:Profesor Oak]]
[[fr:Professeur Chen (jeux vidéo)]]
[[it:Professor Oak]]
[[ja:オーキド博士]]
[[zh:大木博士]]