Yatsuka, Okayama

 was a town located in Maniwa District, Okayama Prefecture, Japan.
As of 2003, the village had an estimated population of 2,946 and a density of 48.15 persons per km2. The total area was 61.19 km2.
On March 31, 2005, Yatsuka, along with the town of Hokubō (from Jōbō District), and towns of Katsuyama, Kuse, Ochiai and Yubara, and the villages of Chūka, Kawakami and Mikamo (all from Maniwa District) were merged to create the city of Maniwa.