The 2018 Open BNP Paribas Banque de Bretagne was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Quimper, France between 29 January and 4 February 2018.
Singles main-draw entrants
Seeds
1 Rankings as of January 15, 2018.
Other entrants
The following players received wildcards into the singles main draw: Elliot Benchetrit Evan Furness Stefanos Tsitsipas
The following player received entry into the singles main draw as a special exempt: Antoine Hoang
The following player received entry into the singles main draw as an alternate: Jay Clarke
The following players received entry from the qualifying draw: Grégoire Barrère Matteo Donati David Guez Maxime Janvier
The following players received entry as lucky losers: Jeremy Jahn Tristan Lamasine
Champions
Singles
Quentin Halys def. Alexey Vatutin 6–3, 7–6(7–1).
Doubles
Ken Skupski / Neal Skupski def. Sander Gillé / Joran Vliegen 6–3, 3–6, [10–7].