was a town located in Asakura District, Fukuoka Prefecture, Japan.
As of 2003, the town has an estimated population of 16,568 and a density of 364.37 persons per km2. The total area is 45.47 km2.
On March 22, 2005, Yasu, along with the town of Miwa (also from Asakura District), was merged to create the town of Chikuzen.[1]