The 1966 Ohio Bobcats football team was an American football team that represented Ohio University in the Mid-American Conference (MAC) during the 1966 NCAA University Division football season. In their ninth season under head coach Bill Hess, the Bobcats compiled a 5–5 record (3–3 against MAC opponents), finished in fourth place in the MAC, and were outscored by all opponents by a combined total of 183 to 149. The team's statistical leaders included Bob Houmard with 641 rushing yards, Ron Delucca with 655 passing yards, and Jay Maupin with 447 receiving yards.