Romaji: Pumpjin) is Ghost/Grass Pokémon introduced in the sixth generation games, Pokémon X and Y. It evolves from Pumpkaboo via trading. It comes in four variations based on size: Small Size, Average Size, Large Size, and Super Size.
Gourgeist is a ghostly gourd-like Pokémon that varies dramatically in size. Its body is a dark brown pumpkin with a glowing, yellow-orange face carved into the front and a pair of nubby legs. The face consists of two triangular eyes and a grinning mouth; on top of the mouth is a small, triangular cutout for a nose. Poking out of the top of the pumpkin is its slender brown-orange head, which has bright yellow eyes and a small mouth but no visible nose. Gourgeist has long, light pink hair with arm-like tendrils framing its face and bangs that usually cover one eye. On top of its head is a crescent-shaped tuft that is brown on top; this tuft resembles a pumpkin's stem. In the anime, Gourgeist has shown the ability to retract its upper body into the pumpkin, giving it the appearance of a traditional jack-o'-lantern.
Gourgeist's four different sizes determines their target for who they take into the afterlife. Small Gourgeist prefers targeting adults by pretending to be children. The large Gourgeist prefers taking children by pretending to be adults. The Supersize Gourgeist aren't picky and will target anyone.
On the night of a new moon, Gourgeist wanders town streets while singing an eerie song. Those who hear its song will be cursed. It is also known to sing joyfully while observing prey it has entangled in its arms.