William Douglass may refer to:
- William Douglass (abolitionist) (1804âÂÂ1862), American abolitionist and church community leader
- William Douglass (engineer, born 1831) (1831âÂÂ1923), engineer-in-chief for Trinity House and later for the Commissioners of Irish Lights
- William Douglass (engineer) (1857âÂÂ1913), Chief Engineer for the Commissioners of Irish Lights
- William Douglass (physician) (1691âÂÂ1752), physician and pamphleteer in Boston
- Bill Douglass (1923âÂÂ1994), American jazz drummer
- Klondike Douglass (William Bingham Douglass, 1872âÂÂ1953), American Major League Baseball player
- William Boone Douglass, lawyer, engineer, surveyor and genealogist
See also