371st

371st may refer to:


 * 371st Bombardment Squadron, inactive United States Air Force unit
 * 371st Engineer Construction Battalion or 371st Engineer Battalion, activated as a Special Service Regiment in the United States Army in 1944
 * 371st Fighter Group or 142nd Fighter Wing, a unit of the Oregon Air National Guard, stationed at Portland Air National Guard Base, Oregon
 * 371st Fighter Squadron or 127th Wing, composite unit of the Michigan Air National Guard, stationed at Selfridge Air National Guard Base, Michigan
 * 371st Infantry Regiment (United States), an African American regiment, nominally a part of the 93rd Infantry Division (Colored), that served in World War I
 * 371st Sustainment Brigade (United States), Ohio Army National Guard sustainment Brigade