2019 Open de Rennes

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.

Seeds

 * 1 Rankings are as of 14 January 2019.

Other entrants
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:
 * 🇷🇺 Aslan Karatsev
 * 🇪🇸 Carlos Taberner

The following players received entry into the singles main draw using their ITF World Tennis Ranking:
 * 🇪🇸 Javier Barranco Cosano
 * 🇮🇹 Raúl Brancaccio
 * 🇧🇬 Dimitar Kuzmanov
 * 🇮🇹 Roman Safiullin

The following players received entry from the qualifying draw:
 * 🇫🇷 Grégoire Jacq
 * 🇫🇷 Fabien Reboul

The following player received entry as a lucky loser:
 * 🇧🇪 Yannick Mertens

Singles

 * 🇱🇹 Ričardas Berankis def. 🇫🇷 Antoine Hoang 6–4, 6–2.

Doubles

 * Sander Arends / 🇦🇹 Tristan-Samuel Weissborn def. David Pel /  Antonio Šančić 6–4, 6–4.