Arpaçay is a town and a district of Kars Province in the Eastern Anatolia region of Turkey.
Arpaçay or Arpa çay or Arpachay may also refer to:
Arpaçay, Azerbaijan Arpaçay River or the Akhurian River, a river in the South Caucasus. Arpaçay Dam, a dam in Armenia and Turkey
See also Arpa Chai (disambiguation)