The 1st Air Squadron (第一飛行戦隊 Dai-ichi-hikō sentai) was a flying unit of the Imperial Japanese Army Air Service. The unit was established on 5 July 1938 at Kagamigahara, Japan. The unit saw service in Manchuria during the Manchuria Incident, China during the Second Sino-Japanese War and Burma, Netherlands East Indies, Indochina, Rabaul, Solomon Islands, New Guinea, Philippines, Formosa and Japan during World War II. The unit was disbanded at Takahagi, Japan in late 1945.