Doi, Ehime

 was a town located in Uma District, Ehime Prefecture, Shikoku, Japan. 
As of 2003, the town had an estimated population of 17,387 and a density of 200.59 persons per km². Its total area was 86.68 km².
On April 1, 2004, Doi along with the village of Shingū (also from Uma District), and the old cities of Iyomishima and Kawanoe, was merged to create the city of Shikokuchūō.