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| 2014 Open de Rennes | |
|---|---|
| Date | 6–12 October |
| Edition | 8th |
| Surface | Hard |
| Location | Rennes, France |
| Champions | |
| Singles | |
 Steve Darcis | |
| Doubles | |
 Tobias Kamke / Philipp Marx | |
The 2014 Open de Rennes was a professional tennis tournament played on hard courts. It was the ninth edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Rennes, France between 6 and 12 October 2014.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| GER | Jan-Lennard Struff | 53 | 1 |
 BRA | Thomaz Bellucci | 68 | 2 |
 FRA | Paul-Henri Mathieu | 81 | 3 |
 ISR | Dudi Sela | 87 | 4 |
 AUT | Andreas Haider-Maurer | 94 | 5 |
| GER | Dustin Brown | 96 | 6 |
| GER | Andreas Beck | 100 | 7 |
| GER | Tobias Kamke | 102 | 8 |
The following players received wildcards into the singles main draw:
The following players used protected ranking to get into the singles main draw:
The following players received entry from the qualifying draw:
Steve Darcis def. Nicolas Mahut, 6–2, 6–4 [1] Tobias Kamke / Philipp Marx def. 
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