The 1968 Ohio State Buckeyes football team is an American football team that represented the Ohio State University in the 1968 Big Ten Conference football season.

It is considered one of the strongest in OSU history, fielding 11 All-Americans and six first-round NFL draft picks.

With quarterback Rex Kern and running back Jim Otis leading a powerful OSU offense and Jack Tatum on defense, Woody Hayes' Buckeyes capped an undefeated season with a dominating 50–14 victory over archrival Michigan and a come-from-behind 27–16 victory over defending national champion USC in the 1969 Rose Bowl to secure the national title.

This would be Ohio State's last outright national championship until 2002.

Perhaps the biggest highlight of the year for the Buckeyes was their upset of #1 Purdue in their third game.