The 2012–13 Top 14 competition was a French domestic rugby union club competition operated by the Ligue Nationale de Rugby (LNR). Two new teams from the 2011–12 Pro D2 season were promoted to Top 14 this year, Grenoble and Stade Montois in place of the two relegated teams, CA Brive and Lyon OU. Home-and-away play began on 17 August 2012 and continued through to 5 May 2013. The regular season was followed by a three-round playoff involving the top six sides. The final was contested at the Stade de France between Toulon and Castres; the match was won 19–14 by Castres to earn them their first title since the controversial final in 1993.