The Cincinnati Celts was the first professional football team to play in Cincinnati, Ohio. The team played in the unofficial "Ohio League" and the American Professional Football Association (renamed the National Football League in 1922). The Celts were a traveling team, playing all of their APFA games in other cities' stadia. In its only season in the APFA, 1921, the team had a record of 1–3. For the entire span of the team's existence, the Celts were coached by Mel Doherty, who was also the team's center.
The Celts were established in 1910 as a semi-pro team made up primarily of players from Miami University in nearby Oxford. During the first 10 years of their existence, the team flourished while playing numerous semi-pro teams from Ohio. An early member of the squad, George Roudebush, referred to the team as being run “by a bunch of wild Irishmen.” In 1914, Lou Partlow played for the Celts.