Củ Chi Base Camp (also known as Củ Chi Army Airfield) is a former U.S. Army and Army of the Republic of Vietnam (ARVN) base in the Củ Chi District northwest of Saigon in southern Vietnam.
Củ Chi Base Camp was established in 1965 near Highway 1, 25 km northwest of Tan Son Nhut Air Base and 50 km southeast of Tây Ninh. The camp was located south of the Vietcong stronghold known as the Iron Triangle and was near and in some cases above the Cu Chi Tunnels.
The 25th Infantry Division had its headquarters at Củ Chi from January 1966 until February 1970.
Other units stationed at Củ Chi included:
- 1st Battalion, 8th Artillery (1966-1971):98
- 7th Battalion, 11th Artillery (1966–70):99
- 1st Battalion, 27th Artillery (February-December1970):102
- 2nd Battalion, 32nd Artillery (November 1965-April 1967, October 1969-January 1972):103
- 6th Battalion, 77th Artillery (May 1967 – 1968):106
- 1st Battalion, 321st Artillery (November 1967-February 1968):108
- 1st Brigade, 1st Cavalry Division(January 1969):126
- 2nd Brigade, 1st Infantry Division (September 1969) comprising:
- 2nd Brigade, 101st Airborne Division (February–October 1968) comprising:
- 3rd Brigade, 101st Airborne Division (July–September 1968) comprising:
- 588th Engineer Battalion (July 1966-April 1967, May–November 1970):174
- 7th Surgical Hospital (June 1966-April 1967):214
- 12th Evacuation Hospital (September 1966-December 1970):214
- 269th Aviation Battalion ( January 1967-April 1971) comprising:
The airfield was capable of accommodating C-7 Caribou and C-123 aircraft.
On 26 February 1969 PAVN sappers attacked the base destroying 9 CH-47 helicopters of the 242nd ASH Company.
Following the departure of the U.S. forces in 1972, Củ Chi became the base of the ARVN 25th Division.
The base remains in use by the People's Army of Vietnam. The airfield is no longer used but is still visible on satellite images.