A ramjet is an airbreathing jet engine that uses the engine's forward motion to compress incoming air.
Ramjet may also refer to:
Ramjet (Transformers), a fictional character in the Transformers toyline Ramjet (Image Comics), a superhero and member of Dynamo 5 Bussard ramjet, a theoretical form of spacecraft propulsion Rochester Ramjet, an automotive fuel injection
See also Roger Ramjet, an animated television comedy Nemo Ramjet, pen name of C. M. Kosemen, Turkish artist and author