Alyn may refer to:
Places Alyn Gorge, a gorge section of the River Alyn River Alyn, a tributary of the River Dee Ogof Hesp Alyn, a cave Bryn Alyn, a hill Alyn Waters, a country park situated in the county of Wrexham
People Given name Alyn Ainsworth, a singer and dance band conductor Alyn Beals, a professional American football player Alyn Camara, a German long jumper Alyn McCauley, a Canadian professional ice hockey player Alyn Shipton, an English jazz author Alyn Smith, a Scottish politician Alyn Ware, a New Zealand peace educator
Middle name Emily Alyn Lind, an American actress E. Alyn Warren, an American actor Barbara Alyn Woods, an American actress
Surname Kirk Alyn, an American actor Marc Alyn, a French poet
Fictional characters Alyn Shir, a character in Kingdoms of Amalur: Reckoning
Other ALYN Hospital, a comprehensive rehabilitation center Ysgol Bryn Alyn, a secondary school in the county borough of Wrexham