Ash's Pikachu (Japanese: サトシのピカチュウ Satoshi's Pikachu) was the signature Pokémon of the Pokémon anime from the original series to Pokémon Journeys: The Series, and the first Pokémon that Ash obtained on his journey as a Pokémon Trainer, given to him by Professor Oak. Pikachu travels outside his Poké Ball.

Pikachu only appears in certain animated scenes, always being with Ash during those times. Like his Trainer, he only shows up as a spirit.