Esashi, Iwate

 was a city located in Iwate Prefecture, Japan. It is currently part of the city of Ōshū.
Esashi village was created within Esashi District on April 1, 1899 with the establishment of the municipalities system. On February 10, 1955, it annexed the neighboring town of Iwayado and the villages of Inase, Atago, Tahara, Hirose, Sunagawa, Tamasato, Fujisato, Yonesato and Ide to form Esashi town. Esashi was raised to city status on November 3, 1958.
On February 20, 2006, Esashi, along with the city of Mizusawa, the towns of Isawa and Maesawa, and the village of Koromogawa (all from Isawa District), was merged to create the city of Ōshū, and no longer exists as an independent municipality.
As of February 2006, the city had an estimated population of 32,457 and a population density of 89.54 persons per km. The total area was 362.50 km.