The Organization of Military Museums of Canada (OMMC) is a national umbrella organization dedicated to preserving Canada's military heritage. Their mission is to preserve the military heritage of Canada by encouraging the establishment and operation of military museums. They also educate military museum staff through lectures, discussions, visits, publications, and exhibits. The OMMC cooperates with other public and private bodies devoted to similar purposes.

The OMMC's geographic focus is nationwide across Canada, with its head office located in Calgary, Alberta. The organization serves over 40 individual members and 60 institutional members. These include Canadian Forces museums, Parks Canada sites, and various federal, provincial, and municipal museums throughout Canada. Their national scope allows them to support military museums and history enthusiasts across the country.

Program highlights of the OMMC include providing courses, meetings, and other opportunities for museum staff to address common problems and learn new methods. They help members enhance their historical knowledge and museological practices. The organization has undertaken significant projects such as the Inventory of Canadian Military Memorials, which aimed to identify and record all Canadian military memorials. The OMMC also publishes a newsletter called "The Bulletin" to share information among members.