Alun

Alun may refer to:

Places

 * Alun, a village in Boșorod Commune, Hunedoara County, Romania
 * Alun (Hungarian: Álun), a village in Bunila Commune, Hunedoara County, Romania
 * Alun River, Romania
 * Afon Alun, a river in the Vale of Glamorgan, Wales
 * River Alyn, also known as the River Alun, Wales
 * River Alun, Pembrokeshire, Wales

Other uses

 * Alun (given name)