A bull is a male of various animal species, including:

• cattle
• elephant
• whale

In English, "bull" is usually spoken to refer specifically to male cattle, with terms such as "bull elephant" disambiguating the term for other species.

See also cow.

Gerald Bull was an engineer developing long range artillery.

Groupe Bull is a computer company.

A papal bull is a written communication from the Vatican, bearing the papal seal.

See also Bull market