2019 Open de Rennes – Doubles
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Sander Gillé and Joran Vliegen were the defending champions but chose not to defend their title.
Sander Arends and Tristan-Samuel Weissborn won the title after defeating David Pel and Antonio Šančić 6–4, 6–4 in the final.
Seeds
- Chinese Taipei Hsieh Cheng-peng / Indonesia Christopher Rungkat (first round)
- France Fabrice Martin / France Hugo Nys (first round)
- Netherlands Sander Arends / Austria Tristan-Samuel Weissborn (champions)
- Brazil Fabrício Neis / India Purav Raja (semifinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted