Fairfield Township may refer to the following places in the U.S. state of Ohio:
Fairfield Township, Butler County, Ohio Fairfield Township, Columbiana County, Ohio Fairfield Township, Highland County, Ohio Fairfield Township, Huron County, Ohio Fairfield Township, Madison County, Ohio Fairfield Township, Tuscarawas County, Ohio Fairfield Township, Washington County, Ohio
See also Fairfield Township (disambiguation)