| Singles | |
|---|---|
| 2024 Open Sopra Steria de Lyon | |
| Champion |  Hugo Gaston |
| Runner-up | Alexandre Müller |
| Score | 6–2, 1–6, 6–1 |
Felipe Meligeni Alves was the defending champion [1] but chose not to defend his title.
Hugo Gaston won the title after defeating Alexandre Müller 6–2, 1–6, 6–1 in the final.
Hugo Gaston (champion) Alexandre Müller (final) Luca Van Assche (quarterfinals)
Camilo Ugo Carabelli (first round)
Valentin Vacherot (withdrew) Ugo Blanchet (second round) Lucas Pouille (withdrew)
Alexander Ritschard (first round)| Semifinals | Final | ||||||||||||
| 1 | Hugo Gaston | 77 | 6 | ||||||||||
| Kyrian Jacquet | 63 | 4 | |||||||||||
| 1 | Hugo Gaston | 6 | 1 | 6 | |||||||||
| 2 | Alexandre Müller | 2 | 6 | 1 | |||||||||
| Q |  Raphaël Collignon | 6 | 2 | 2 | |||||||||
| 2 | Alexandre Müller | 1 | 6 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | H Gaston | 6 | 711 | ||||||||||||||||||||||||
 D Rincón | 0 | 69 | 1 | H Gaston | 6 | 61 | 6 | ||||||||||||||||||||
| Alt | G Onclin | 2 | 60 | C Tabur | 2 | 77 | 3 | ||||||||||||||||||||
| C Tabur | 6 | 77 | 1 | H Gaston | 4 | 6 | 6 | ||||||||||||||||||||
| M Janvier | 77 | 6 | Q |  N Basilashvili | 6 | 4 | 3 | ||||||||||||||||||||
 T Boyer | 64 | 3 | M Janvier | 5 | 1 | ||||||||||||||||||||||
| Q | N Basilashvili | 7 | 6 | Q | N Basilashvili | 7 | 6 | ||||||||||||||||||||
| 8 | A Ritschard | 5 | 2 | 1 | H Gaston | 77 | 6 | ||||||||||||||||||||
| 4 | C Ugo Carabelli | 4 | 2 | K Jacquet | 63 | 4 | |||||||||||||||||||||
| LL | C Taberner | 6 | 6 | LL | C Taberner | 6 | 3 | 3 | |||||||||||||||||||
| K Jacquet | 6 | 3 | 6 | K Jacquet | 2 | 6 | 6 | ||||||||||||||||||||
| WC | G Debru | 1 | 6 | 3 | K Jacquet | 7 | 1 | ||||||||||||||||||||
| Alt | T Lamasine | 3 | 6 | 2 | Q Halys | 5 | 0r | ||||||||||||||||||||
| Q Halys | 6 | 1 | 6 | Q Halys | 6 | 7 | |||||||||||||||||||||
| C Hemery | 5 | 3 | LL | M Bourgue | 2 | 5 | |||||||||||||||||||||
| LL | M Bourgue | 7 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL | D Jordà Sanchis | 6 | 5 | 77 | |||||||||||||||||||||||
| H Grenier | 3 | 7 | 62 | LL | D Jordà Sanchis | 0 | 5 | ||||||||||||||||||||
| Q |  S Fanselow | 1 | 3 | Q | R Collignon | 6 | 7 | ||||||||||||||||||||
| Q | R Collignon | 6 | 6 | Q | R Collignon | 7 | 6 | ||||||||||||||||||||
| Q | Lucas Poullain | 4 | 1 | 3 | L Van Assche | 5 | 3 | ||||||||||||||||||||
| Q | J Barranco Cosano | 6 | 6 | Q | J Barranco Cosano | 2 | 5 | ||||||||||||||||||||
| WC | Arthur Gea | 6 | 4 | 64 | 3 | L Van Assche | 6 | 7 | |||||||||||||||||||
| 3 | L Van Assche | 4 | 6 | 77 | Q | R Collignon | 6 | 2 | 2 | ||||||||||||||||||
| 6 | U Blanchet | 4 | 2 | A Müller | 1 | 6 | 6 | ||||||||||||||||||||
| M Guinard | 1r | 6 | U Blanchet | 4 | 3 | ||||||||||||||||||||||
| Q | FA Gómez | 4 | 1r | Alt |  FC Jianu | 6 | 6 | ||||||||||||||||||||
| Alt | FC Jianu | 6 | 2 | Alt | FC Jianu | 2 | 2 | ||||||||||||||||||||
| WC | Maé Malige | 1 | 2 | 2 | A Müller | 6 | 6 | ||||||||||||||||||||
 A Kachmazov | 6 | 6 | A Kachmazov | 0 | 2 | ||||||||||||||||||||||
| JP Ficovich | 5 | 0 | 2 | A Müller | 6 | 6 | |||||||||||||||||||||
| 2 | A Müller | 7 | 6 | ||||||||||||||||||||||||
Tomislav Brkić and Ante Pavić were the defending champions but only Brkić chose to defend his title, partnering Andrea Pellegrino. Brkić lost in the first round to Sergio Martos Gornés and Felipe Meligeni Alves.
Carlos Taberner was the defending champion but chose not to defend his title.
Rafael Matos and João Menezes were the defending champions but chose not to defend their title.
Felipe Meligeni Alves was the defending champion but withdrew before his semifinal match with Luciano Darderi.
Luis David Martínez and Felipe Meligeni Alves were the defending champions but chose to defend their title with different partners. Martínez partnered Fernando Romboli but lost in the semifinals to Nicolás Barrientos and Alejandro Gómez. Meligeni Alves partnered Rafael Matos but withdrew before the final due to a positive test for COVID-19.
Sebastián Báez was the defending champion but chose not to defend his title.
Simone Bolelli and Máximo González were the defending champions but Bolelli chose not to participate. González was scheduled to partner Nicolás Jarry, but Jarry withdrew with a right elbow injury before their first round match.
Orlando Luz and Felipe Meligeni Alves were the defending champions but only Meligeni Alves chose to defend his title, partnering Marcelo Demoliner. Meligeni Alves lost in the quarterfinals to Luciano Darderi and Fernando Romboli.
Rafael Matos and Felipe Meligeni Alves were the defending champions but chose not to defend their title.
Sebastián Báez was the defending champion but chose not to defend his title.
Rafael Matos and Felipe Meligeni Alves were the defending champions but only Meligeni Alves chose to defend his title, partnering Matheus Pucinelli de Almeida. Meligeni Alves withdrew before his first round match due to injury.
This was the first edition of the tournament.
Nicolás Jarry defeated Tomás Martín Etcheverry in the final, 6–7(5–7), 7–6(7–5), 6–2 to win the singles tennis title at the 2023 Chile Open. This was Jarry's first ATP title since 2019.
This was the first edition of the tournament.
Alexandre Müller was the defending champion but chose not to defend his title.
Felipe Meligeni Alves was the defending champion but chose not to defend his title.
Jan Choinski was the defending champion but lost in the second round to Andrea Pellegrino.
Agustín Velotti was the defending champion from when the tournament was last held in 2016 but didn't defend his title as he retired from professional tennis.
Daniel Altmaier was the defending champion but chose not to defend his title.
Karen Khachanov defeated Jakub Menšík in the final, 7–6(14–12), 6–4 to win the singles tennis title at the 2024 ATP Qatar Open. It was his sixth ATP Tour singles title, and he did not lose a set en route. Menšík became the first player born in 2005 to reach an ATP Tour final, and the youngest player to reach an ATP Tour final since Carlos Alcaraz at the 2021 Croatia Open.