US Montauban were a French rugby union club, which competed in the Top 14 competition between 2007 and 2010, after being promoted from Rugby Pro D2 for the 2006-07 season. They were based in Montauban in the département of Tarn-et-Garonne in Midi-Pyrénées.
In April 2010, it was announced the club would be relegated from the Top 14 to the Rugby Pro D2 at the end of the 2009/2010 season after breaking budget rules for the league. Although the club appealed the ruling it started to release players to reduce its budget. The club was not in the relegation zone at the time, thereby saving CS Bourgoin-Jallieu, Aviron Bayonnais and Montpellier Hérault RC a nervous run in as they were in the relegation battle with Montauban. On the 26 April 2010, the club filed for bankruptcy at a commercial court following a meeting of the club's board of directors.