Kaya (加悦町 Kaya-chō) was a town located in Yosa District, Kyoto Prefecture, Japan.
As of 2006, the town had an estimated population of 7,913 and a density of 134 persons per km². The total area was 59.05 km2 (23 sq mi).
On March 1, 2006 Kaya was merged with the towns of Iwataki and Nodagawa, all from Yosa District, to form the new town of Yosano.
Kaya's sister-town was Aberystwyth in Wales.