- any of a family (Ictaluridae) of North American freshwater catfishes
- sculpin (sense )
Origin of bullheadsee bull-
- Any of several stocky North American freshwater catfishes of the genus Ameiurus, having a tail that is not forked.
- Any of several sculpins, especially the miller's thumb.
- (North America) any of a variety of related species of generally dark-colored catfish in the family Ictaluridae.
- (North America) The black bullhead, Ameiurus melas.
- (North America) The brown bullhead, Ameiurus nebulosus.
- (North America) The yellow bullhead, Ameiurus natalis.
- (Europe, Asia) Any of various sculpins of the order Scorpaeniformes
- (Europe, Asia) The European bullhead, Cottus gobio.
- (rail transport) bullhead rail