From Bulbapedia, the community-driven Pokémon encyclopedia.
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.
List of Pokémon that do not evolve
List of former stand alone Pokémon