| Marine Wing Support Squadron 274 | |
|---|---|
 MWSS-274's insignia | |
| Active | 2 June 1986 – 21 May 2021 |
| Country | United States |
| Branch | United States Marine Corps |
| Type | Aviation ground support squadron |
| Part of | Marine Aircraft Group 29 2nd Marine Aircraft Wing |
| Garrison/HQ | Marine Corps Air Station Cherry Point |
| Nickname(s) | Ironmen |
| Motto(s) | "Aeternus Adjuvo" "Eternal Support" |
| Engagements | Operation Desert Storm Operation Iraqi Freedom Operation Enduring Freedom |
| Commanders | |
| Commanding Officer | LtCol Mark D. Schouten |
Marine Wing Support Squadron 274 (MWSS-274) is an aviation ground support unit of the United States Marine Corps. They are based out of Marine Corps Air Station Cherry Point, North Carolina. The squadron falls under the command of Marine Wing Support Group 27 and the 2nd Marine Aircraft Wing.