The 2012 Ohio State Buckeyes football team represented The Ohio State University in the 2012 NCAA Division I FBS football season. It was the Buckeye's 123rd season overall, the 100th as a member of the Big Ten Conference and the second as a members of the Big Ten Leaders Division. The team was led by head coach Urban Meyer in his return to coaching after retiring from Florida in 2010 due to health concerns. The Buckeyes played their home games at Ohio Stadium in Columbus, Ohio. The Buckeyes finished the season undefeated with 12 wins (12–0 overall, 8–0 in the Big Ten), Big Ten Leaders Division champions and ranked third in the AP Poll. Due to findings of an investigation conducted by the NCAA during the previous season, Ohio State was ineligible for both the Big Ten Championship Game and an appearance in a bowl game for the 2012 season.
Following their first losing season since 1988, the Buckeyes hired Urban Meyer, who won two national championships with the Florida Gators, as the head coach in November 2011. Meyer and his staff brought in a top five recruiting class while returning 20 starters and starting quarterback Braxton Miller for Spring and Fall camp. Ohio State entered the season ranked in the middle of the Big Ten, with many expecting a transition season for Meyer and the players. The Buckeyes opened the season with blowout victories against Miami (Ohio) and UCF. Ohio State would defeat Michigan State 17–16 and Nebraska 63–38, games they lost in 2011, to move to 6–0 on the season. The Buckeyes would hold in overtime games against Purdue and Wisconsin later in the season, winning eleven straight. The Buckeyes capped off their undefeated season with a 26–21 victory over arch rival Michigan, denying the Wolverines a share of the Legends Division title.
At the end of the season, several players were recognized with postseason awards for individual accomplishments. Braxton Miller was named the Big Ten offensive player of the year, while John Simon was named the Big Ten defensive player of the year. Also, three players were named to the AP All-American Team, including Johnathan Hankins, Bradley Roby and John Simon.