William Collier sr. (12 November 1864 – 13 Januarie 1944) was 'n Amerikaanse akteur en skrywer. Hy was bekend vir sy rolle in die rolprente Madison Square Garden (1932), A Successful Failure (1934), Cain and Mabel (1936), en Going Places (1938).
- 1916: The No-Good Guy
- 1920: The Servant Question
- 1922: The Hottentot
- 1924: Never Say Die
- 1929: The Hottentot
- 1929: Nothing But the Truth
- 1930: Harmony at Home
- 1930: High Society Blues
- 1930: The March of Time
- 1930: She's My Weakness
- 1930: Up the River
- 1931: The Brat
- 1931: Mr. Lemon of Orange
- 1931: Seas Beneath
- 1931: 6 Cylinder Love
- 1932: Madison Square Garden
- 1932: After Tomorrow
- 1932: She Wanted a Millionaire
- 1932: Stepping Sisters
- 1934: A Successful Failure
- 1934: Cheaters
- 1935: The Bride Comes Home
- 1936: Cain and Mabel
- 1936: Love on a Bet
- 1938: Going Places
- 1938: Glamour Girl
- 1939: Miracle on Main Street
- 1939: Television Spy
