Greninja (disambiguation)


 * A Pokémon which belonged to : Ash's Greninja
 * A Pokémon belonging to Sanpei: Sanpei's Greninja
 * A Pokémon belonging to Y: Croaky
 * A group of cards in the : Greninja (TCG)
 * A playable character in the Super Smash Bros. series: Greninja (Super Smash Bros.)