3rd Battalion, 11th Marines
| 3rd Battalion, 11th Marines | |
|---|---|
| 3/11 Insignia | |
| Active | 1 May 1943 – 30 September 1947 20 August 1950 – present | 
| Country | United States of America | 
| Branch | United States Marine Corps | 
| Type | Artillery | 
| Role | Provide fires in support of 1st Marine Division | 
| Size | 800 | 
| Part of | 11th Marine Regiment 1st Marine Division | 
| Garrison/HQ | Marine Corps Air Ground Combat Center Twentynine Palms | 
| Nickname(s) | "Thunder" | 
| Motto(s) | "Semper Flexibilis" and "Dominatus Nox" | 
| Engagements | World War II Vietnam War | 
| Commanders | |
| Commanding Officer | LtCol Christopher R. Hart | 
| Sergeant Major | SgtMaj Brandon W. Fairbanks | 
| Notable commanders | James J. Keating | 
3rd Battalion, 11th Marines (3/11) is an artillery battalion comprising three firing batteries, a Liaison Unit, and a headquarters battery. The battalion is based at the Marine Corps Air Ground Combat Center Twentynine Palms, California and its primary weapon system is the M777 lightweight howitzer with a maximum effective range of 25 miles. They fall under the 11th Marine Regiment and the 1st Marine Division.