This is a list of non-Legendary Pokémon that do not evolve from or into any Pokémon. Some of these Pokémon may get future evolutions or pre-evolutions in later generations. There are some Pokémon formerly part of this list that have already received evolutions after their debut.
Mega Evolutions are not counted as an evolution but a more powerful version of the same form. Hence why some stand alone Pokémon that have received Mega Evolutions are still on this list.
List of Pokémon that are not part of an evolutionary line
List of former stand alone Pokémon