Bill or William Steele may refer to:
Bill Steele (baseball) (1885–1949), pitcher in Major League Baseball
Bill Steele (cave explorer) (born 1948 as Charles William Steele), American speleologist
Bill Steele (ice hockey) (born 1952), ice hockey player in the World Hockey Association
Billy Steele (born 1956), Scottish former footballer
William Steele (actor) (1888–1966), American actor
William Steele (general) (1819–1885), American Army officer and Confederate general
William Steele (Lord Chancellor of Ireland) (1610–1680), Lord Chancellor of Ireland
William Steele (Pittsburgh), Chief Burgess of the Borough of Pittsburgh, 1812–1813, see List of Mayors of Pittsburgh
William Steele (rugby player) (born 1947), former Scotland international rugby union player
Willie Steele (William Samuel Steele, 1923–1989), American athlete
William A. Steele, a character in the serial Ace of Spades
William Alan Beevor Steele (1895–1966), Australian Army general
William B. Steele (born 1929), United States Army general
William G. Steele (1820–1892), American Democratic Party politician
William H. Steele (judge) (born 1951), American jurist
William H. Steele (Wisconsin) (1872-1955), American politician
William H. Steele (born c. 1955), military officer and former commander of Camp Cropper, a holding facility for security detainees in Iraq
William L. Steele (1875–1949), American architect
William M. Steele, General Officer in the U.S. Army
William O. Steele (1917–1979), American author
William Randolph Steele (1842–1901), Delegate from the Territory of Wyoming