William Clifford (27 Junie 1877 – 23 Desember 1941) was 'n Amerikaanse akteur. Hy was bekend vir sy rolle in die rolprente The Second in Command (1915), The Hidden Law (1916), en A Tale of Two Cities (1917).
- 1915: The Second in Command
- 1915: Rosemary
- 1916: The Hidden Law
- 1916: The Bait
- 1916: Sins of Her Parent
- 1916: A Corner in Cotton
- 1916: The Heart of Tara
- 1916: The Leopard's Bride
- 1917: A Tale of Two Cities
- 1917: The Island of Desire
- 1917: Out of the Wreck
- 1917: Paradise Garden
- 1917: Pay Me!
- 1917: The Square Deceiver
- 1917: Under Handicap
- 1917: Young Mother Hubbard
- 1918: The Landloper
- 1919: The Long Arm of Mannister
- 1919: A Man of Honor
- 1920: The Confession
- 1920: Parted Curtains
- 1920: An Adventuress
- 1920: Notorious Miss Lisle
- 1920: The Turning Point
- 1927: Three Miles Up
