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. MWSG-37 was deactivated on June 15, 2012.