| 2010 Open de Rennes | |
|---|---|
| Date | 12–17 October |
| Edition | 5th |
| Surface | Hard |
| Location | Rennes, France |
| Champions | |
| Singles | |
 Marc Gicquel | |
| Doubles | |
 Scott Lipsky / David Martin | |
The 2010 Open de Rennes was a professional tennis tournament played on hard courts. It was the fifth edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Rennes, France between 12 and 17 October 2010.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| FRA | Arnaud Clément | 62 | 1 |
 SVK | Lukáš Lacko | 71 | 2 |
| FRA | Stéphane Robert | 94 | 3 |
 GER | Björn Phau | 99 | 4 |
 SUI | Stéphane Bohli | 125 | 5 |
| FRA | David Guez | 131 | 6 |
 BUL | Grigor Dimitrov | 135 | 7 |
 SRB | Ilija Bozoljac | 136 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry as a Special Exempt into the singles main draw:
The following players received entry from the qualifying draw:
Marc Gicquel def. Stéphane Bohli, 7–6(8–6), 4–6, 6–1
Scott Lipsky / David Martin def. Denis Gremelmayr / Björn Phau, 6–4, 5–7, [12–10]
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