VMM-166
| Marine Medium Tiltrotor Squadron 166 | |
|---|---|
VMM-166 insignia | |
| Active | 13 September 1985 – 1 October 2021 |
| Allegiance | United States of America |
| Branch | United States Marine Corps |
| Type | Medium-lift helicopter squadron |
| Role | Assault support CASEVAC |
| Part of | Marine Aircraft Group 16 |
| Garrison/HQ | Marine Corps Air Station Miramar |
| Nickname(s) | Sea Elk |
| Motto(s) | "Because We Cann" |
| Tail Code | YX |
| Mascot(s) | Lucky the Elk |
| Engagements | Operation Desert Storm Operation Restore Hope Operation Iraqi Freedom Operation Inherent Resolve |
Marine Medium Tiltrotor Squadron 166 (VMM-166) was a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "SeaElk", was last based at Marine Corps Air Station Miramar, California. Activated in 1985, HMM-166 was the youngest CH-46 helicopter squadron in the Marine Corps. The squadron was redesignated as a tiltrotor squadron on 23 June 2010. The squadron was deactivated on 1 October 2021.