Dennis Stewart
- Birthday: 1947-07-29
- Deathday: 1994-04-20
- Place of birth: Los Angeles, California, USA
- Also know as: Dennis C. Stewart
Dennis Cleveland Stewart (July 29, 1947 – April 20, 1994) was an American actor and dancer. Best known for Grease (1978), and Grease 2 (1983), and Sgt Pepper's Lonely Hearts Club Band (1978).
