| Marine Aircraft Group 31 | |
|---|---|
 MAG-31 Insignia | |
| Active | 1 February 1943 – present |
| Country | United States |
| Branch | United States Marine Corps |
| Type | Fixed Wing Aircraft Group |
| Role | Offensive Air Support Antiair Warfare Aerial Reconnaissance |
| Part of | 2nd Marine Aircraft Wing II Marine Expeditionary Force |
| Garrison/HQ | Marine Corps Air Station Beaufort |
| Motto(s) | "Going the Distance... Going for Speed!" |
| Engagements | World War II Battle of Okinawa Operation Desert Storm Operation Deny Flight Operation Enduring Freedom Operation Iraqi Freedom |
| Commanders | |
| Commanding Officer | Col Michael R. Cassidy |
Marine Aircraft Group 31 (MAG-31) is a United States Marine Corps aviation group based at Marine Corps Air Station Beaufort, South Carolina that is currently composed of two F/A-18C Hornet squadrons, one F/A-18A++ Hornet squadron, two F/A-18D Hornet squadrons, one F-35B Lightning II training squadron, and an aviation logistics squadron. It falls under the command of the 2nd Marine Aircraft Wing.