William Clifford may refer to:
- William Clifford (priest) (died 1670)
- William Clifford (cricketer) (1811–1841), English cricketer
- William Clifford (actor) (1877–1941), American actor of the silent era
- William Kingdon Clifford (1845–1879), mathematician and philosopher
- Willie Clifford, Northern Irish former footballer
- William Clifford Heilman, American composer
- Billy Clifford (soccer), American professional soccer player
- Billy Clifford (footballer), English professional footballer
Famous quotes containing the word clifford:
“If we keep an open mind, too much is likely to fall into it.”
—Natalie Clifford Barney (1876–1972)