377th may refer to:
377th Air Base Wing, wing of the United States Air Force based at Kirtland Air Force Base, New Mexico 377th Bombardment Group, first constituted at Fort Dix Army Air Base New Jersey in 1942 377th Field Artillery Regiment, field artillery regiment of the United States Army 1st Battalion, 377th Field Artillery Regiment 2nd Battalion, 377th Field Artillery Regiment 377th Fighter Squadron, inactive United States Air Force unit 377th Theater Sustainment Command (TSC), unit of the US Army 377th Troop Carrier Squadron, inactive United States Air Force unit
See also 377 (number) 377, the year 377 (CCCLXXVII) of the Julian calendar 377 BC