Yaotsu (八百津町, Yaotsu-chō) is a town located in Kamo District, Gifu Prefecture, Japan.

During the Edo period, the area was part of the territory controlled by Owari Domain under by the Tokugawa shogunate.

With the post-Meiji restoration cadastral reforms, Kamo District within Gifu Prefecture was created, and the town of Yaotsu was established on July 1, 1897 with the creation of the modern municipalities system.

Gifu Prefecture announced that it was infected with a domestic animal infectious disease "pig cholera" although on November 26, 2018, it was found in a town wading field in the carcass of a wild boar.

Furthermore, on December 2, it was also revealed that male wild boars captured by Kageuri trap in Yaotsu town (near Nanyo Temple) were infected with swine fever.