The 2012–13 1. FC Köln season was the 64th season in club history. In the 2012–13 season, the club played in the 2. Bundesliga; the second tier of German football. It was the club's first season back in this league, after being relegated from the Bundesliga in 2012. The season started on 5 August 2012 and ended on 19 May 2013.