2018 Open Sopra Steria de Lyon

The 2018 Open Sopra Steria de Lyon was a professional tennis tournament played on clay courts. It was the 3rd edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Lyon, France, between 11 and 17 June 2018.

Seeds

 * 1 Rankings are as of 28 May 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇫🇷 Elliot Benchetrit
 * 🇫🇷 Corentin Moutet
 * 🇫🇷 Alexandre Müller
 * 🇦🇺 Alexei Popyrin

The following players received entry from the qualifying draw:
 * 🇫🇷 Tristan Lamasine
 * 🇮🇹 Roberto Marcora
 * 🇫🇷 Johan Tatlot
 * 🇸🇪 Mikael Ymer

Singles

 * 🇨🇦 Félix Auger-Aliassime def. 🇫🇷 Johan Tatlot 6–7(3–7), 7–5, 6–2.

Doubles

 * 🇫🇷 Elliot Benchetrit / 🇫🇷 Geoffrey Blancaneaux def. Hsieh Cheng-peng /  Luca Margaroli 6–3, 4–6, [10–7].