Yuasa, Wakayama

 is a town located in Arida District, Wakayama Prefecture, Japan.
As of 2016, the town has an estimated population of 11,960 and a density of 580 persons per km². The total area is 20.80 km².
There are four elementary schools, one junior high school, and one senior high school. 
Yuasa is famous for soy sauce as well as whitebait fish, known as "shirasu". 