Phạm Tuân ([faːm˧ˀ˨ʔ twɜn˨˩] born 14 February 1947) is a retired Vietnam Air Force aviator and cosmonaut. He became the first Vietnamese citizen and the first person from an Asian country in space when he flew aboard the Soyuz 37 mission as an Interkosmos Research Cosmonaut. He was awarded the title Hero of the Soviet Union.