The Royal Canadian Medical Service is a personnel branch of the Canadian Armed Forces, consisting of all members of medical occupations. Nearly all members of the RCMS, along with the members of the Royal Canadian Dental Corps (RCDC), are employed in the Canadian Forces Health Services Group, an operational formation. The RCMS was formerly designated the Canadian Forces Medical Service until it was redesignated on October 9, 2013.

The Canadian Forces Health Services Group is a formation of the Canadian Forces within the Military Personnel Command. It includes personnel from both the Royal Canadian Medical Service and the Royal Canadian Dental Corps, fulfills all military health system functions from education and clinical services to research and public health, and is composed of health professionals from over 40 occupations and specialties in over 120 units and detachments across Canada and abroad.