The Marine Aerial Navigator Badge is a military badge of the United States Marine Corps that is issued to Marine Corps enlisted personnel who complete flight training as a navigator onboard Marine Corps aircraft. The badge is the only independant aviation badge of the Marine Corps which cannot be issued to both Marine Corps and Navy aviators.

The Marine Aerial Navigator Badge is similar in appearance to the Naval Flight Officer Badge and is considered a "successor" to the Naval Aviation Observer (Navigation) Badge, issued between March 1945 and March 1947.

To be awarded the Marine Aerial Navigator Badge, a service member must complete the Marine Aerial Navigator Course at Randolph Air Force Base (or an equivalent formal course of another service) and volunteer to fly as enlisted aircrew. Upon completion of training, and certification as a Marine Corps Navigator, the Marine Aerial Navigator Badge is presented. After designation, Marine Aerial Navigators serve in the Military Occupational Speciality (MOS) 7371 (Aerial Navigator-Trainee) while undergoing aircraft model-specific training and move into MOS 7372 (First Navigator) upon completion of their aircraft type training.