2019 ATP Lyon Open

The 2019 Lyon Open (also known as the Open Parc Auvergne-Rhône-Alpes Lyon) was a men's tennis tournament played on outdoor clay courts. It was the third edition of the Lyon Open and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place in the city of Lyon, France, from 19 May through 25 May 2019. Unseeded Benoît Paire won the singles title.

Singles

 * 🇫🇷 Benoît Paire defeated 🇨🇦 Félix Auger-Aliassime, 6–4, 6–3

Doubles

 * Ivan Dodig / 🇫🇷 Édouard Roger-Vasselin defeated 🇬🇧 Ken Skupski / 🇬🇧 Neal Skupski, 6–4, 6–3

Seeds

 * Rankings are as of May 13, 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇫🇷 Richard Gasquet
 * 🇫🇷 Corentin Moutet
 * 🇨🇦 Denis Shapovalov

The following player received entry using a protected ranking into the singles main draw:
 * 🇫🇷 Jo-Wilfried Tsonga

The following players received entry from the qualifying draw:
 * 🇨🇦 Steven Diez
 * 🇫🇷 Maxime Janvier
 * 🇮🇹 Jannik Sinner
 * 🇨🇿 Jiří Veselý

The following players received entry as lucky losers:
 * Lloyd Harris
 * 🇫🇷 Tristan Lamasine

Withdrawals
🇫🇷 Richard Gasquet
 * Before the tournament
 * 🇨🇿 Tomáš Berdych → replaced by 🇫🇷 Benoît Paire
 * 🇺🇸 John Isner → replaced by 🇪🇸 Pablo Andújar
 * 🇸🇰 Martin Kližan → replaced by Lloyd Harris
 * 🇰🇿 Mikhail Kukushkin → replaced by 🇫🇷 Tristan Lamasine
 * 🇩🇪 Jan-Lennard Struff → replaced by 🇫🇷 Ugo Humbert
 * During the tournament

Retirements

 * 🇦🇺 Bernard Tomic

Seeds

 * Rankings are as of May 13, 2019.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇫🇷 Antoine Hoang / 🇫🇷 Grégoire Jacq
 * 🇫🇷 Ugo Humbert / 🇫🇷 Tristan Lamasine

The following pairs received entry as alternates:
 * Romain Arneodo / Hugo Nys
 * 🇨🇳 Gong Maoxin / Lloyd Harris

Withdrawals

 * Before the tournament
 * 🇸🇰 Martin Kližan
 * 🇬🇧 Cameron Norrie
 * During the tournament
 * 🇳🇿 Michael Venus