The 484th Bombardment Squadron is an inactive United States Air Force unit. It was last assigned to the 505th Bombardment Group at Clark Field, Philippines, where it was inactivated on 10 June 1946. The squadron's first predecessor was organized in August 1917 as the 72d Aero Squadron. In 1918, it was redesignated the 484th Aero Squadron (Construction) and deployed to France, where it constructed airfields in forward areas. Following the Armistice of 11 November 1918, the squadron returned to the United States for demobilization in 1919.