William or Billy Pratt may refer to:
- William Abbott Pratt (1818–1879), American photographer
- William B. Pratt (1935–2019), American physician and politician
- William Pratt (MP for Southwark), English politician
- William Henry Pratt, real name of actor Boris Karloff
- William Pratt (born 1609), ancestor of the Pratt-Romney family
- William Pratt (rugby league) (1932–2009), English rugby league footballer of the 1950s for Leeds, and Halifax
- William K. Pratt, American educator, businessman, and author
- William V. Pratt (1869–1957), admiral in the United States Navy
- William Pratt (cricketer) (1895–1974), English cricketer
- William Dymock Pratt (1854–1916), English architect
- William Pratt (businessman) (1928–1999), Canadian businessman
- Billy Pratt (footballer, born 1872) (1872–?), English football winger for Small Heath from 1889 to 1892
- Billy Pratt (footballer, born 1874) (1874–?), English football full-back for Small Heath from 1894 to 1902
- Spike (Buffy the Vampire Slayer), a character from television series Buffy the Vampire Slayer
Topics referred to by the same termThis disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: