William Brooks may refer to:

• William Thomas Brooks (1889–1943), police officer that led 1923 Victorian police strike
• William Brooks (Australian politician) (1858–1937), New South Wales politician
• William Brooks (footballer) (1873–?), English footballer
• William Brooks (died 1782), founder of English gentlemen's club Brooks's
• William Brooks, 2nd Baron Crawshaw (1853–1929), English nobleman
• William Brooks of Blackburn (1762–1846), cotton supplier
• William Collin Brooks (1893–1959), British journalist, writer and broadcaster
• William Cunliffe Brooks (1819–1900), British lawyer and politician
• William Edwin Brooks (1828–1899), Irish civil engineer and ornithologist
• Bucky Brooks (William Eldridge Brooks, Jr., born 1971), American football player and sportswriter
• Bill Brooks (coach) (William J. Brooks, 1922–2010), American baseball and basketball coach
• William Keith Brooks (1848–1908), American zoologist
• William L. Brooks (1832–1874), American western outlaw
• Bill Brooks (wide receiver) (William T. Brooks, Jr., born 1964), former American football player
• Bud Brooks (William Brooks, 1930–2005), American football player
• Billy Brooks (William McKinley Brooks III, born 1953), American football player
• William A. Brooks (1864–1921), American surgeon, football player, coach, official, and rower
• William Michael Clifton Brooks, 4th Baron Crawshaw (1933–1997), English nobleman
• William P. Brooks (1851–1938), American agricultural scientist
• William Robert Brooks (1844–1921), American astronomer
• William T. H. Brooks (1821–1870), Union Army general during the American Civil War
• William Frederick Brooks (1863–1928), American businessman and politician

• Smith Observatory and Dr. William R. Brooks House, historic home and observatory in Geneva, New York, U.S.
• Brooks Farm, also known as the William Brooks Farm, historic farmsite in Troy, Michigan, U.S.
• Bill Brooks (disambiguation)
• William Brookes (disambiguation)
• William Penny Brookes (1809–1895), English physician and botanist, involved in the Olympics
• William Brooke (disambiguation)
• Bill Brookes, rugby league footballer of the 1900s for Hunslet