William Campbell
William Campbell is the name of the following people:
- William Campbell (politician) (around 1731–1778), North American politician
- William Campbell (General) (1745–1781) American farmer and general
- William Campbell (Lieutenant Governor) (before 1880 – after 1885), American politician, Lieutenant Governor (Illinois)
- William Campbell (Director) (1884–1972), American director and screenwriter
- William Campbell (actor) (1923-2011), American actor
- William Campbell of Breadalbane (1863–1944), German major general
- William B. Campbell (1807–1867), American politician
- William Bennett Campbell (1943-2008), Canadian politician, see Bennett Campbell
- William C. Campbell (born 1930), Irish parasitologist
- William Cammack Campbell (1923–2013), American golfer and official
- William D. Campbell (1924–2013), American civil rights activist
- William Oliver Campbell (born 1959), American actor, see Billy Campbell
- William Paul Campbell (1935–2015), American politician
- William W. Campbell (1806–1881), American lawyer and politician (New York)
- William Wallace Campbell (1862–1938), American astronomer
- William Wildman Campbell (1853–1927), American politician
- William Wilfred Campbell (around 1858–1918), Canadian writer
See also:
- Bill Campbell
- Billy Campbell ( William Oliver Campbell ; born 1959), American actor