Bethel Township is one of the ten townships of Clark County, Ohio, United States. The 2020 census reported 18,050 people living in the township.

Clark County is a county located in the west central portion of the U.S. state of Ohio. As of the 2020 census, the population was 136,001. Its county seat and largest city is Springfield. The county was created on March 1, 1818, and was named for General George Rogers Clark, a hero of the American Revolution.