2019 ATP Lyon Open – Singles
| Singles | |
|---|---|
| 2019 ATP Lyon Open | |
| Champion | Benoît Paire |
| Runner-up | Félix Auger-Aliassime |
| Score | 6–4, 6–3 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Dominic Thiem was the defending champion, but he chose not to defend his title this year.
Benoît Paire won the title, defeating Félix Auger-Aliassime in the final, 6–4, 6–3.