The 377th Troop Carrier Squadron is an inactive United States Air Force unit. It was last assigned to the 60th Troop Carrier Wing. It was inactivated at Dreux-Louvilliers Air Base, France on 25 September 1958.

Established as a B-25 Mitchell medium bombardment squadron in early 1942; trained under Third Air Force. Assigned to Columbia Army Air Base, South Carolina as first an Operational Training Unit (OTU) for newly-formed squadrons, then in 1943 becoming a Replacement Training Unit (RTU) for pilots and aircrew on the B-25 prior to the personnel being assigned overseas to combat units. Inactivated on 1 May 1944 with the phaseout of B-25 training.

Reactivated in 1949 in the Air Force Reserve as a Troop Carrier Squadron Programmed for C-46 Commandoes, never manned or equipped. Inactivated in 1950. Reactivated in 1955 as a Tactical Air Command C-123 Provider Troop Carrier Squadron, being one of the first squadrons being equipped with the aircraft. Deployed to France in 1956 to reinforce NATO and the United States Air Forces in Europe. Ianctivated in 1958 due to budget restrictions.

• Constituted 377th Bombardment Squadron (Medium) on 28 Jan 1942

Activated on 15 Mar 1942

Disbanded on 1 May 1944

• Reconstituted, and redesignated 377th Troop Carrier Squadron (Medium), on 16 May 1949

Activated in the reserve on 26 Jun 1949

Inactivated on 28 Jan 1950

• Redesignated 377th Troop Carrier Squadron (Assault, Fixed Wing) on 14 Apr 1955

Activated on 8 Jul 1955

Redesignated 377th Troop Carrier Squadron (Assault) on 15 Jul 1958

Inactivated on 25 Sep 1958

• 309th Bombardment Group, 15 Mar 1942-1 May 1944
• 309th Troop Carrier Group, 26 Jun 1949-28 Jan 1950; 8 Jul 1955
• 60th Troop Carrier Wing, 12 Mar 1957-25 Sep 1958

• Davis-Monthan Field, Ariz, 15 Mar 1942
• Jackson AAB, Miss, 15 Mar 1942
• Key Field, Miss, 29 Apr 1942;
• Columbia AAB, SC, 15 May 1942-1 May 1944
• Smyrna AFB, Tenn, 26 Jun 1949-28 Jan 1950
• Ardmore AFB, Okla, 8 Jul 1955-21 May 1956
• Dreux-Louvilliers Air Base, France, 2 Jun 1956-25 Sep 1958

• B-25 Mitchell, 1942-1944
• C-123 Provider, 1955-1958

 This article incorporates public domain material from the Air Force Historical Research Agency

• Mauer, Mauer (1969), Combat Squadrons of the Air Force, World War II, Air Force Historical Studies Office, Maxwell AFB, Alabama. ISBN: 0892010975
• 772d Expeditionary Airlift Squadron (ACC) Factsheet