Alköy, Posof
Alköy is a village in the Posof District, Ardahan Province, Turkey. Its population is 157.
The village has a Lom population.
Alköy's former name was Ali. There is a settlement in Georgia bearing the name Ali. This name is written as Al in the Ottoman land-survey register of 1595. The main church of the Georgian monastery, Ali Monastery, Ali Church, was built in the 10th the 11th century.