Kawauchi (川内町, Kawauchi-machi) was a town located in Shimokita District in northern Aomori Prefecture, Japan. Kawauchi Village was founded in 1889 from the merger the hamlets of Kawauchi, Hinokigawa, Shukunohe, and Kakizaki. It was elevated to town status on October 31, 1917. 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. Kawauchi was served by Route 338 highway, but had no railway service.