Ayun

Ayun may refer to:


 * 'Ayūn, a component or Arabic placenames meaning springs, fountains, sources
 * An alternative form of El Aaiún, a city in Western Sahara
 * Ayun (woreda), a district of Somali Region, Ethiopia
 * Ayun, Chitral, a village in Pakistan
 * Ayun Halliday (born 1965), American writer and actor