- a cetacean, Grampus griseus, of the dolphin family, widely distributed in northern seas.
- any of various related cetaceans, as the killer whale, Orcinus (Orca) orca.
- a giant whip scorpion common to Florida.
- a widely distributed slaty-grey dolphin, Grampus griseus, with a blunt snout
- another name for killer whale
