 | This article relies largely or entirely on a single source .(June 2025) |
| 2009 Open de Rennes | |
|---|---|
| Date | 12–18 October |
| Edition | 4th |
| Surface | Hard |
| Location | Rennes, France |
| Champions | |
| Singles | |
 Alejandro Falla | |
| Doubles | |
 Eric Butorac /  Lovro Zovko | |
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.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 FRA | Josselin Ouanna | 88 | 1 |
 GER | Daniel Brands | 119 | 2 |
 AUS | Carsten Ball | 123 | 3 |
 RSA | Kevin Anderson | 128 | 4 |
| COL | Alejandro Falla | 131 | 5 |
| FRA | Arnaud Clément | 134 | 6 |
| FRA | Stéphane Robert | 135 | 7 |
 BRA | Thiago Alves | 147 | 8 |
The following players received wildcards into the singles main draw:
Charles-Antoine Brézac Romain Jouan Gianni Mina Julien ObryThe following players received entry from the qualifying draw:
Alejandro Falla def. Thierry Ascione, 6–3, 6–2 [1]
Eric Butorac / Lovro Zovko def. Kevin Anderson / 
Dominik Hrbatý, 6–4, 3–6, [10–6]
