The Chillicothe Gazette is Ohio's oldest newspaper.^[2] Published daily at Chillicothe, Ohio, the seat of Ross County, Ohio, by Gannett, the paper was founded as a weekly at Cincinnati, Ohio, then the capital of the Northwest Territory, November 9, 1793, as the Centinel of the Northwest Territory. It decamped to Chillicothe when the territorial government moved to that city c. 1800. The paper was owned until the 1990s by Gannett, who sold it to Community Newspaper Holdings who in turn sold to The Thomson Corporation. When Thomson exited the newspaper business in the late 1990s, Gannett bought it back.

It has been suggested that Centinel of the Northwest Territory be merged into this article. (Discuss) Proposed since December 2023.