| Doubles | |
|---|---|
| 2023 Matsuyama Challenger | |
| 2022 Champions |  Andrew Harris John-Patrick Smith |
Andrew Harris and John-Patrick Smith were the defending champions [1] but chose not to defend their title.
| Doubles | |
|---|---|
| 2023 Matsuyama Challenger | |
| 2022 Champions | Andrew Harris John-Patrick Smith |
Andrew Harris and John-Patrick Smith were the defending champions [1] but chose not to defend their title.
Ivan Sabanov / Matej Sabanov (first round)
Karol Drzewiecki / 
Zdeněk Kolář 
Toshihide Matsui / Kaito Uesugi 
Ray Ho / Matthew Romios | First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | I Sabanov M Sabanov | 4 | 77 | [9] | |||||||||||||||||||||||
 P Raja R Ramanathan | 6 | 62 | [11] | P Raja R Ramanathan | 2 | 4 | |||||||||||||||||||||
| Alt |  S-c Hong J Jung | 5 | 4 | J-s Nam K Uchida | 6 | 6 | |||||||||||||||||||||
| J-s Nam K Uchida | 7 | 6 | J-s Nam K Uchida | ||||||||||||||||||||||||
| 3 | T Matsui K Uesugi | 77 | 7 | 3 | T Matsui K Uesugi | ||||||||||||||||||||||
| Y-h Hsu M-k Song | 62 | 5 | 3 | T Matsui K Uesugi | 77 | 67 | [10] | ||||||||||||||||||||
 M Echargui  B Hassan | 6 | 0 | [10] | M Echargui B Hassan | 63 | 79 | [8] | ||||||||||||||||||||
Y-s Chung  R Gonzales | 3 | 6 | [5] |  | |||||||||||||||||||||||
| B Ellis C Puttergill | 3 | 61 | |||||||||||||||||||||||||
 F Bergevi  Mick Veldheer | 6 | 77 | F Bergevi M Veldheer | 62 | 77 | [7] | |||||||||||||||||||||
| WC | Sho Katayama T Yuzuki | 5 | 3 | 4 | R Ho MC Romios | 77 | 64 | [10] | |||||||||||||||||||
| 4 | R Ho MC Romios | 7 | 6 | 4 | R Ho MC Romios | ||||||||||||||||||||||
| S Mochizuki S Shimabukuro | 77 | 6 | 2 | K Drzewiecki Z Kolář | |||||||||||||||||||||||
| N Kaliyanda Poonacha D Sharan | 65 | 1 | S Mochizuki S Shimabukuro | ||||||||||||||||||||||||
FC Alcantara  Y Bu | 3 | 6 | [7] | 2 | K Drzewiecki Z Kolář | w/o | |||||||||||||||||||||
| 2 | K Drzewiecki Z Kolář | 6 | 3 | [10] | |||||||||||||||||||||||
Antal van der Duim and Boy Westerhof were the defending champions but chose not to defend their title.
Chen Ti and Ben McLachlan were the defending champions but chose not to defend their title.
Julian Ocleppo and Andrea Vavassori were the defending champions but only Vavassori chose to defend his title, partnering Andrea Pellegrino. Vavassori lost in the semifinals to Ivan and Matej Sabanov.
Kevin Krawietz and Andreas Mies were the defending champions but chose not to defend their title.
Łukasz Kubot and Marcelo Melo won the title, defeating Murray and Skupski in the final, 7–6(7–5), 7–5.
Jonathan Erlich and Andy Ram were the last defending champions after victory in 2012, but Erlich chose not to participate and Ram retired from professional tennis in 2014.
The men's doubles of the 2021 I.ČLTK Prague Open tournament was played on clay in Prague, Czech Republic.
Simone Bolelli and Guillermo Durán were the defending champions but only Durán chose to defend his title, partnering Tim Sandkaulen. Durán lost in the quarterfinals to Szymon Walków and Jan Zieliński.
Sadio Doumbia and Fabien Reboul were the defending champions but chose not to defend their title.
Guido Andreozzi and Andrés Molteni were the defending champions but only Molteni chose to defend his title, partnering Santiago González. Molteni successfully defended his title.
Andre Begemann and Albano Olivetti were the defending champions but chose not to defend their title.
Frederik Nielsen and Tim Pütz were the defending champions but chose not to defend their title.
Hugo Nys and Jan Zieliński were the defending champions but chose not to defend their title.
Matthew Ebden and Max Purcell defeated Ivan and Matej Sabanov in the final, 6–3, 6–3 to win the doubles tennis title at the 2022 U.S. Men's Clay Court Championships. They did not drop a set en route to their first ATP Tour doubles title as a team.
Ariel Behar and Gonzalo Escobar defeated Nikola Mektić and Mate Pavić in the final, 6–2, 3–6, [10–7], to win the doubles title at the 2022 Serbia Open. The unseeded duo earned their third career ATP Tour doubles title together.
Lloyd Glasspool and Harri Heliövaara defeated Rohan Bopanna and Matwé Middelkoop in the final, 6–2, 6–4 to win the men's doubles tennis title at the 2022 Hamburg European Open.
Orlando Luz and Rafael Matos were the defending champions but chose not to defend their title.
Zdeněk Kolář and Luis David Martínez were the defending champions but only Martínez chose to defend his title, partnering Fabien Reboul. Martínez lost in the semifinals to Ivan and Matej Sabanov.
Santiago González and Andrés Molteni were the defending champions but chose not to defend their title.
Alexander Erler and Lucas Miedler were the defending champions but lost in the final to Ivan and Matej Sabanov.
 | This tennis-related competition article is a stub. You can help Wikipedia by expanding it. |