Yuya (油谷町 Yuya-chō) was a town located in Ōtsu District, Yamaguchi, Japan.
On March 22, 2005 Yuya, along with the towns of Heki and Misumi, all from Ōtsu District, was merged into the expanded city of Nagato.
As of 2003, the town had an estimated population of 7,857 and a density of 84.24 persons per km². The total area was 93.27 km².