2015 Open Harmonie mutuelle

The 2015 Open Harmonie mutuelle was a professional tennis tournament played on hard courts. It was the twelfth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Saint-Brieuc, France between 6 April and 12 April 2015.

Seeds

 * Rankings are as of March 23, 2015.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇫🇷 Grégoire Barrère
 * 🇫🇷 Grégoire Burquier
 * 🇫🇷 Quentin Halys
 * 🇫🇷 Laurent Rochette

The following players received entry from the qualifying draw:
 * 🇩🇪 Richard Becker
 * 🇫🇷 Constant Lestienne
 * 🇫🇷 Hugo Nys
 * 🇬🇧 Marcus Willis

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇫🇷 Grégoire Barrère / 🇫🇷 Marc Gicquel
 * 🇫🇷 Rémi Boutillier / 🇫🇷 Quentin Halys
 * 🇫🇷 Grégoire Burquier / 🇫🇷 Alexandre Sidorenko

Singles

 * 🇫🇷 Nicolas Mahut def. 🇯🇵 Yūichi Sugita, 3–6, 7–6(7–3), 6–4

Doubles

 * 🇫🇷 Grégoire Burquier / 🇫🇷 Alexandre Sidorenko def. 🇵🇱 Andriej Kapaś / 🇯🇵 Yasutaka Uchiyama, 6–3, 6–4