Phillip Glasser (born October 4, 1978 in Tarzana, California) is an American actor and producer. He is best known for the role of Fievel Mousekewitz in the animated films, An American Tail and An American Tail: Fievel Goes West, and the television series Fievel's American Tails. He frequently does voice-over roles. He originally appeared in Star Trek: Insurrection as young Ru'afo, however, his scenes were deleted. In the late ' 90's he played the role of Eugene in NBC Saturday morning sitcom Hang Time. He is currently working as a producer for films. His first one he co-produced is Kickin' It Old Skool.

Younger brother of Michelle Glasser (II).