The Front for the Liberation of Occupied South Yemen (FLOSY; Arabic: جبهة تحرير جنوب اليمن المحتل, romanized: jabhat taḥrīr janūb al-Yaman al-muḥtali) was an Arab nationalist military organization operating in the Federation of South Arabia (a British protectorate; now Southern Yemen) in the 1960s. As the British tried to exit, Abdullah al Asnag created FLOSY. FLOSY attempted to seize power when the British left from another military group operating in South Arabia, the Marxist National Liberation Front (NLF).