William, Bill or Billy Bass may refer to:
People William M. Bass (born 1928), American forensic anthropologist Sir William Bass, 2nd Baronet (1879–1952), British racehorse owner William Bass (brewer) (1717–1787), British entrepreneur founder of Bass Brewery Bill Bass (1922–1967), Canadian football player Billy Bass Nelson (1951–2026), American musician
Other Big Mouth Billy Bass, an animatronic fish
See also Bass (surname)