The Royal Military College Saint-Jean, commonly referred to as RMC Saint-Jean and CMR, is a Canadian military college and university. It is located on the historical site of Fort Saint-Jean, in Saint-Jean-sur-Richelieu, Quebec, 40 km south of Montreal. RMC Saint-Jean is an arm of the Canadian Military College (CMC) system that provides two college-level programs in Social Science and Science, which are closely integrated with the undergraduate programs offered by the Royal Military College of Canada. RMC Saint-Jean was granted independent university status in 2021, and it currently offers a bachelor's degree in International Studies.

A military academy or service academy is an educational institution which prepares candidates for service in the officer corps. It normally provides education in a military environment, the exact definition depending on the country concerned.