The brown bullhead, Ameiurus nebulosus.
A bullhead rail.
The yellow bullhead, Ameiurus natalis.
The black bullhead, Ameiurus melas.
A fish of species Gobiomorphus gobioides.
An obstinate person.
The European bullhead, Cottus gobio.
Any of various sculpins of the suborder Scorpaenoidei
A chronograph (watch or stopwatch) with two push buttons arranged like the horns of a bull on the top end of the case, typically with the crown between them.
A bullhead shark (Heterodontus spp.).
A catfish native to the eastern United States, the brown bullhead, Ameiurus nebulosus.