William Harris may refer to:

• William Harris (blues artist) (1900–?), American blues artist
• William Harris (journalist), founder of the Ottawa Citizen newspaper
• William Harris (swimmer), American swimmer and Olympic bronze medallist
• William Harris (tennis) (born 1947), American tennis player
• William Harris (terrorist), founder of the Symbionese Liberation Army
• William A. Harris (Kansas) (1841–1909), U.S. Representative from Kansas
• William A. Harris (Virginia) (1805–1864), U.S. Representative from Virginia
• William C. Harris, Assistant Commissioner of Police of the Metropolis, 1856–1881
• Sir William Henry Harris (1883–1973), English organist and composer
• William J. Harris (1868–1932), U.S. Senator from Georgia
• William Laurel Harris (1870–1924), American muralist and editor
• William Torrey Harris (1835–1909), American educator, philosopher, and lexicographer

See also

• Bill Harris

William Harris | William Harris