Marine Wing Support Group 37 (MWSG-37) was a United States Marine Corps aviation combat service support unit based at Marine Corps Air Station Miramar that was composed of 4 squadrons, that provided the 3rd Marine Aircraft Wing and I Marine Expeditionary Force with complete airfield operation services (less air traffic control), engineer and transportation support, medical assistance, food services, security support, and other direct combat and combat service support to Aviation Combat elements.

As part of the Marine Corps' Force Design initiative, MWSG-37 was again decommissioned on 17 July 2020.

They relocated during September 1955 to Marine Corps Air Station El Toro, California.

[citation needed] The unit relocated during October 1998 to Marine Corps Air Station Miramar, California, through the Base Realignment and Closure (BRAC) process.

[citation needed] Marine Wing Support Group 37 deactivated on 15 June 2012.