Yamashiro (山城町, Yamashiro-chō) was a town located in Sōraku District, Kyoto Prefecture, Japan. The town was named for the old Yamashiro Province.

As of 2003, the town had an estimated population of 8,978 and a density of 366.00 persons per km². The total area was 24.53 km².

On March 12, 2007, Yamashiro, along with the towns of Kamo and Kizu (all from Sōraku District), was merged to create the city of Kizugawa.