Headquarters and Maintenance Squadron 15 (H&MS-15) was a United States Marine Corps aviation support unit established to provide logistical and maintenance support for Marine aircraft. Activated during the Vietnam War era, H&MS-15 played a critical role in ensuring the operational readiness of aviation units by handling aircraft maintenance, supply, and administrative functions. The squadron was stationed at Marine Corps Air Station Iwakuni, Japan, serving as a key support element for Marine aviation operations in the Western Pacific. H&MS-15 was eventually redesignated as Marine Aviation Logistics Squadron 15 (MALS-15) as part of a broader reorganization of Marine aviation support units in the 1980s.
