Kawauchi (川内町, Kawauchi-machi) was a town located in Shimokita District in northern Aomori Prefecture, Japan.

On March 14, 2005, Kawauchi, along with the neighboring town of Ōhata, and the village of Wakinosawa (all from Shimokita District), was merged into the neighboring and expanded city of Mutsu, and thus no longer exists as an independent municipality.

Located in southern Shimokita Peninsula facing Mutsu Bay, the town of Kawauchi had an economy based on commercial fishing (scallops and sea cucumber), forestry and agriculture (rice, tobacco).

Kawauchi was served by Route 338 highway, but had no railway service.

This Aomori Prefecture location article is a stub.