The 2010 Football League One play-off Final was an association football match which was played on 29 May 2010 at Wembley Stadium, London, between Millwall and Swindon Town to determine the third and final team to gain promotion from Football League One to the Football League Championship. The top two teams of the 2009–10 Football League One season, Norwich City and Leeds United, gained automatic promotion to the Championship, while the teams placed from third to sixth place in the table took part in play-off semi-finals; the winners of these semi-finals competed for the final place for the 2010–11 season in the Championship. Charlton Athletic and Huddersfield Town were the losing semi-finalists, having been defeated by Swindon and Millwall respectively.