Susan Silo (born July 27, 1942, in New York City) is a prolific American voice actress. Her voice credits for Hanna-Barbera include:
- Zelda the ostrich on Heyyy, It's the King
- Sue the purple ghost on Pac-Man
- Mrs. Escrow on Foofur
- Gertie Furbelow in Jetsons: The Movie
Silo is the daughter of show business parents. She also volunteers for various charitable organizations and teaches workshops in voice acting.