Papun (, also spelt Hpapun) is a town in Kayin State, Myanmar. It is on the east side of the Yunzalin River. It was formerly one of the headquarters of the Karen National Union and the Karen National Liberation Army. The Papun Airport is also located nearby. During the Myanmar civil war, the Karen National Liberation Army claimed to have seized the town on 28 March 2024 from the State Administration Council following a siege that began on 20 March.