三户町（日语：三戸町／さんのへまち）位于三户郡南端，及邻近岩手县边界的町。 在古时为三户郡的核心地带。

由于出土很多绳文时代遗迹，一般认为古时有村落的存在。镰仓时代开始后，根据奥州合战的功绩，南部光行拜领糠部五郡，成为南部氏的支配地。战国时代时，由于兴建主城三户城，令城下町十分繁荣。江户时代时，主城转移至盛冈城后，作为代理官职人士的居所。

Sannohe(三戸町,Sannohe-machi) is a town located in Sannohe District of southeastern Aomori Prefecture in the Tōhoku region of Japan. As of September 2015, the town had an estimated population of 10,133 and a population density of 66.8 persons per km. Its total area was 151.79 square kilometres (58.61 sq mi).