Tōhoku is a town located in Aomori Prefecture, Japan. As of 31 December 2022, the town had an estimated population of 16,625 in 7251 households, and a population density of 51 persons per km² in 7,269 households. The total area of the town is 326.50 km2 (126.06 sq mi).

The Aoimori Railway Line is a regional rail line in Aomori Prefecture, Japan that is operated by the Aoimori Railway Company. It connects the terminal station of the Iwate Galaxy Railway Line, Metoki Station, in the town of Sannohe to Aomori Station, the terminus of several rail lines in the city of Aomori. The Aoimori and Iwate Galaxy Railway Lines are former sections of the Tōhoku Main Line that connected Tokyo to Aomori that were rendered obsolete for long-distance passenger services by the completion of the high-speed Tōhoku Shinkansen between Tokyo and Shin-Aomori stations. Though local passenger services are run on the line by the Aoimori Railway Company, the East Japan Railway Company continues to operate limited services, such as the sightseeing train Resort Asunaro, along the line, and the Japan Freight Railway Company transports freight along the line.