The 2009 Open de Rennes was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Rennes, France between 12 and 18 October 2009.
ATP entrants
Seeds
Rankings are as of October 5, 2009.
Other entrants
The following players received wildcards into the singles main draw: Charles-Antoine Brézac Romain Jouan Gianni Mina Julien Obry
The following players received entry from the qualifying draw: Rabie Chaki Jérôme Haehnel Jerzy Janowicz Rameez Junaid
Champions
Singles
Alejandro Falla def. Thierry Ascione, 6–3, 6–2
Doubles
Eric Butorac / Lovro Zovko def. Kevin Anderson / Dominik Hrbatý, 6–4, 3–6, [10–6]