Moroni Olsen (27 Junie 1889 – 22 November 1954) was 'n Amerikaanse akteur. Hy was bekend vir sy rolle in die rolprente Mildred Pierce (1945), Notorious (1946), At Sword's Point (1952), en Lone Star (1952).
- 1935: Annie Oakley
- 1936: The Farmer in the Dell
- 1936: Grand Jury
- 1936: M'Liss
- 1936: Mummy's Boys
- 1936: Two in Revolt
- 1936: Yellow Dust
- 1937: Adventure's End
- 1939: Code of the Secret Service
- 1939: Homicide Bureau
- 1941: Dangerously They Live
- 1945: Mildred Pierce
- 1946: Notorious
- 1952: At Sword's Point
- 1952: Lone Star
