Sierra (GO)

シエラ Sierra
"The Lone Lioness"
GO Sierra.png
Art from Pokémon GO
Age Unknown
Gender Female
Eye color Gray
Hair color Brown
Hometown Unknown
Region Unknown
Trainer class Team GO Rocket Leader
Generation VII, VIII, IX
Games Pokémon GO
Member of Team GO Rocket
Rank Leader
Specializes in Dark types

Sierra (Japanese: シエラ Sierra) is one of the Leaders of Team GO Rocket in Pokémon GO.

A street-smart loner, she has grown up under difficult circumstances, allowing her to learn martial arts. As she rose within the ranks of Team GO Rocket, she became Giovanni's most trusted confidant.[1]


Sierra was the second Team GO Rocket Leader encountered by one of Professor Willow's assistants, following Cliff. Spark, while rescuing Eggs from potential PokéStop invasions, ran into Sierra during his mission. Sierra mocked Spark's efforts in rescuing the Eggs, which prompted him to challenge her to battle. However, Sierra noticed that an unprepared Spark had not brought any Poké Balls, and dismissed his challenge as she walked away.[2]

On November 5, 2019[3], Sierra sent the following message to Spark:

"Spark. Your naïve positivity is laughable and will be your undoing.
The world is so very cruel.
I’ll make sure to remind you soon."

On November 12, 2019, Sierra was tracked down by Spark using the Rocket Radar and was challenged to battle. The battle resulted in a close loss for Sierra as Spark ended up with only one Pokémon remaining.[4]

On July 26, 2020, during Pokémon GO Fest 2020, Sierra battled Spark. Spark initiated the battle by sending out an Elekid, while Sierra sent a Shadow Houndoom.[5] Houndoom started the fight by using Bite but Elekid knocked it with a destabilizing Thunder Punch.[6] In the end, Spark won the battle when Giovanni recalled Sierra to him along with the other Team GO Rocket Leaders.[7]


Trainer Battles

Sierra uses a team of three Shadow Pokémon in a Trainer Battle, each independently and randomly selected from separate pools. During battle, Sierra will always use a Protect Shield whenever possible. Upon being defeated, Sierra will abandon one of the Shadow Pokémon used in battle.

The following lists the possible Pokémon used by Sierra since June 21, 2023. Green-colored cells denote the Pokémon that will be encountered during the bonus challenge. These Shadow Pokémon have a chance of becoming Shiny, as denoted by the   icon.

For a historic list of Sierra's past Pokémon teams, see Team GO Rocket Leader (Trainer class)/Pokémon change history.
Leader Sierra
Team GO Rocket Leader
#1 #2 #3

Shadow Raids

From September 2 to September 30, 2023, Sierra appears in five-star Shadow Raids on Saturdays and Sundays.

Pokémon Boss CP Catch CP
46418 1864 - 2015

2330 - 2519



Model from
Pokémon GO


Icon from
Pokémon GO


Main article: Sierra (GO)/Quotes


  • Houndoom has always been one of Sierra's usable Pokémon.


Language Name Origin
Japanese シエラ Sierra From sierra (Spanish for mountain range)
English, German, Spanish, French,
Italian, Brazilian Portuguese, Turkish
Sierra Same as her Japanese name
Korean 시에라 Sierra Transcription of her Japanese name
Chinese (Mandarin) 希爾拉 Xī'ěrlā Transcription of her Japanese name
Chinese (Cantonese) 希爾拉 Hēiyíhlāai
Thai เซียร์รา Sierra Transcription of her Japanese name


Boss: Giovanni
Leaders: CliffSierraArlo
Lower members: Team GO Rocket Grunts
Pokémon: Shadow PokémonShadow Raid
Items: Mysterious Component
Rocket RadarSuper Rocket Radar
Shadow ShardPurified Gem

  This game character article is part of Project CharacterDex, a Bulbapedia project that aims to write comprehensive articles on each character found in the Pokémon games.