Bull (nickname)

Bull, The Bull, and Da Bull are used as nicknames and ring names.
Those so named include:

Bill Adams, Australian rules footballer
Donnis Churchwell, American former National Football League player
Bull Buchanan, ring name of Barry Buchanan, American wrestler
Bull Connor, American politician infamous for opposing desegregation in Birmingham, Alabama, in the 1960s
Bull Curry, ring name of Fred Thomas Koury, Sr., American professional wrestler
Johnny Davis, American former National Football League player
Ed Durham, American baseball pitcher
Leon Durham, American baseball first baseman
Luis Ángel Firpo, Argentine boxer nicknamed "The Wild Bull of The Pampas"
Sammy Gravano, former underboss of the Gambino crime family
David Gurfein, United States Marine Corps lieutenant colonel, and CEO of nonprofit organization United American Patriots
William Halsey Jr., United States Navy fleet admiral
Johnny Hoogerland, Dutch cyclist nicknamed the "Bull of Beveland"
Terry Jenkins, English darts player
Brooks Lawrence, American Negro National League and Major League Baseball pitcher
Greg Luzinski, American Major League Baseball outfielder and designated hitter
Frank McCaffrey, American college football player and 1917 head football coach of Fordham University
Harshad Mehta, Indian stockbroker and fraudster, nicknamed "The Big Bull" and "Raging Bull"
Bull Montana, American professional wrestler and actor
Bull Nakano, ring name of Japanese women's professional wrestler Keiko Nakano
William "Bull" Nelson, United States Army major-general during the American Civil War, and United States Navy officer prior to the war
Greg Noll, American surfing pioneer
Bull Pain, American professional wrestler
Bull Polisky, American football player
Alan Richardson, Australian footballer
Franz Roth, German former footballer
Hakan Şükür, Turkish retired footballer nicknamed the "Bull of the Bosphorus"
Edwin Vose Sumner, American Civil War Union Army general
Tsang Kin-shing, Hong Kong politician