| 2019 Open de Rennes | |
|---|---|
| Date | 21–27 January |
| Edition | 13th |
| Surface | Hard |
| Location | Rennes, France |
| Champions | |
| Singles | |
 Ričardas Berankis | |
| Doubles | |
 Sander Arends /  Tristan-Samuel Weissborn | |
The 2019 Open de Rennes was a professional tennis tournament played on hard courts. It was the thirteenth edition of the tournament and part of the 2019 ATP Challenger Tour. It took place in Rennes, France between 21 and 27 January 2019.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 FRA | Adrian Mannarino | 42 | 1 |
| FRA | Benoît Paire | 61 | 2 |
 CAN | Félix Auger-Aliassime | 106 | 3 |
| LTU | Ričardas Berankis | 110 | 4 |
 SWE | Elias Ymer | 111 | 5 |
 CYP | Marcos Baghdatis | 122 | 6 |
 GER | Yannick Maden | 124 | 7 |
| FRA | Quentin Halys | 127 | 8 |
 UKR | Sergiy Stakhovsky | 132 | 9 |
 ITA | |||
| AUT | Dennis Novak | 141 | 11 |
| FRA | Constant Lestienne | 142 | 12 |
 CZE | Lukáš Rosol | 143 | 13 |
| FRA | Antoine Hoang | 147 | 14 |
| FRA | Corentin Moutet | 151 | 15 |
| ITA | Salvatore Caruso | 156 | 16 |
The following players received wildcards into the singles main draw:
Antoine Cornut-Chauvinc Evan Furness Hugo Gaston Manuel Guinard Adrian Mannarino The following players received entry into the singles main draw as alternates:
The following players received entry into the singles main draw using their ITF World Tennis Ranking:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Ričardas Berankis def. Antoine Hoang 6–4, 6–2. Sander Arends / Tristan-Samuel Weissborn def. David Pel / 
Antonio Šančić 6–4, 6–4.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.
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