| Doubles | |
|---|---|
| 2021 Brest Challenger | |
| Champions |  Sadio Doumbia Fabien Reboul |
| Runners-up |  Salvatore Caruso Federico Gaio |
| Score | 4–6, 6–3, [10–3] |
Denys Molchanov and Andrei Vasilevski were the defending champions [1] but only Molchanov chose to defend his title, partnering Aleksandr Nedovyesov. Molchanov lost in the semifinals to Sadio Doumbia and Fabien Reboul.
Doumbia and Reboul won the title after defeating Salvatore Caruso and Federico Gaio 4–6, 6–3, [10–3].
Denys Molchanov / 
Aleksandr Nedovyesov (semifinals) Albano Olivetti / 
Matt Reid (first round)
Zdeněk Kolář / 
David Vega Hernández (semifinals) Sadio Doumbia / Fabien Reboul (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | D Molchanov A Nedovyesov | 6 | 7 | ||||||||||||||||||||||||
 S Balaji D Sharan | 3 | 5 | 1 | D Molchanov A Nedovyesov | 6 | 5 | [11] | ||||||||||||||||||||
 F Ferreira Silva J Sousa | 4 | 6 | [10] | F Ferreira Silva J Sousa | 2 | 7 | [9] | ||||||||||||||||||||
| PR | F Cabral  E Hoyt | 6 | 1 | [5] | 1 | D Molchanov A Nedovyesov | 612 | 2 | |||||||||||||||||||
| 4 | S Doumbia F Reboul | 6 | 6 | 4 | S Doumbia F Reboul | 714 | 6 | ||||||||||||||||||||
| M Guinard A Hoang | 0 | 3 | 4 | S Doumbia F Reboul | 4 | 79 | [10] | ||||||||||||||||||||
 DN Mădăraș  A Vatutin | 3 | 4 | L Broady L Johnson | 6 | 67 | [7] | |||||||||||||||||||||
| L Broady L Johnson | 6 | 6 | 4 | S Doumbia F Reboul | 4 | 6 | [10] | ||||||||||||||||||||
M Martineau  Z Piros | 4 | 5 | S Caruso F Gaio | 6 | 3 | [3] | |||||||||||||||||||||
| H Grenier A Müller | 6 | 7 | H Grenier A Müller | 4 | 1 | ||||||||||||||||||||||
 J Cerretani  F Fallert | 63 | 3 | 3 | Z Kolář D Vega Hernández | 6 | 6 | |||||||||||||||||||||
| 3 | Z Kolář D Vega Hernández | 77 | 6 | 3 | Z Kolář D Vega Hernández | 5 | 5 | ||||||||||||||||||||
 A Dougaz  M Safwat | 3 | 4 | S Caruso F Gaio | 7 | 7 | ||||||||||||||||||||||
| S Caruso F Gaio | 6 | 6 | S Caruso F Gaio | 7 | 3 | [10] | |||||||||||||||||||||
| N Monroe B Nakashima | 6 | 6 | N Monroe B Nakashima | 5 | 6 | [6] | |||||||||||||||||||||
| 2 | A Olivetti M Reid | 4 | 4 | ||||||||||||||||||||||||
Laurynas Grigelis and Zdeněk Kolář were the defending champions but only Kolář chose to defend his title, partnering Julian Ocleppo. Kolář successfully defended his title after defeating Luca Margaroli and Andrea Vavassori 6–4, 6–3 in the final.
Hugo Nys and Tim Pütz were the defending champions but chose not to defend their title.
Philipp Oswald and Filip Polášek were the defending champions but chose not to defend their title.
This was the first edition of the tournament since 2011.
Andrés Molteni and Hugo Nys were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Denys Molchanov and Igor Zelenay were the defending champions but chose not to defend their title.
Lukáš Klein and Alex Molčan were the defending champions but chose not to defend their title.
Blaž Kavčič and Blaž Rola were the defending champions but chose not to defend their title.
Szymon Walków and Jan Zieliński were the defending champions but chose not to defend his title.
Sadio Doumbia and Fabien Reboul were the two-time defending champions but lost in the final to Jesper de Jong and Bart Stevens.
Vitaliy Sachko and Dominic Stricker were the defending champions but chose not to defend their title.
Simone Bolelli and Máximo González were the defending champions but chose not to defend their title.
Albano Olivetti and David Vega Hernández were the defending champions but only Olivetti chose to defend his title, partnering Hunter Reese. Olivetti lost in the quarterfinals to Anirudh Chandrasekar and Arjun Kadhe.
Defending champion Andrés Molteni and his partner Máximo González defeated Sadio Doumbia and Fabien Reboul in the final, 6–4, 6–4 to win the doubles tennis title at the 2023 Córdoba Open.
Máximo González and Andrés Molteni defeated Juan Sebastián Cabal and Marcelo Melo in the final, 6–1, 7–6(7–3) to win the doubles tennis title at the 2023 Rio Open.
Jamie Murray and Michael Venus defeated Francisco Cabral and Aleksandr Nedovyesov in the final, 7–5, 6–2 to win the inaugural doubles tennis title at the 2023 Srpska Open.
Jesper de Jong and Bart Stevens were the defending champions but chose not to defend their title.
Sadio Doumbia and Fabien Reboul were the defending champions but chose not to defend their title.
Alexander Erler and Lucas Miedler defeated Gonzalo Escobar and Aleksandr Nedovyesov in the final, 6–4, 6–4 to win the doubles tennis title at the 2023 Generali Open Kitzbühel.