Marion Township is one of the seventeen townships of Hancock County, Ohio, United States. As of the 2020 census, the population was 3,097.

Hancock County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 74,920. Its county seat and largest city is Findlay. The county was created in 1820 and later organized in 1828. It was named for John Hancock, the first signer of the Declaration of Independence.