Comet 5 was an American automotive brand that operated briefly from 1946 to 1948. The company was based in Ridgewood, New York, and focused on the development of a unique three-wheeled vehicle.

The Comet 5 featured a lightweight plastic body designed to accommodate two passengers. Its innovative design included wire wheels, which contributed to its distinctive appearance. The vehicle was powered by a 4.5 horsepower air-cooled engine, which allowed it to achieve an impressive fuel efficiency of over 100 miles per gallon.

Despite its innovative features, Comet 5's production was short-lived, and the brand ceased operations shortly after its inception. The vehicle remains a notable example of post-war automotive experimentation in the United States.