| Doubles | |
|---|---|
| 2023 Schwaben Open | |
| Champions |  Constantin Frantzen Hendrik Jebens |
| Runners-up |  Constantin Bittoun Kouzmine Volodymyr Uzhylovskyi |
| Score | 6–2, 6–2 |
Andrei Vasilevski and Igor Zelenay were the defending champions [1] but chose not to defend their title.
Constantin Frantzen and Hendrik Jebens won the title after defeating Constantin Bittoun Kouzmine and Volodymyr Uzhylovskyi 6–2, 6–2 in the final.
Constantin Frantzen / Hendrik Jebens (champions)
Ivan Liutarevich / Vladyslav Manafov (quarterfinals)
Neil Oberleitner / Tim Sandkaulen (semifinals)
Purav Raja / Ramkumar Ramanathan (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | C Frantzen H Jebens | 65 | 77 | [10] | |||||||||||||||||||||||
 H Habib B Hassan | 77 | 62 | [8] | 1 | C Frantzen H Jebens | 63 | 6 | [14] | |||||||||||||||||||
| WC | J Schnaitter M Wallner | 6 | 6 | WC | J Schnaitter M Wallner | 77 | 3 | [12] | |||||||||||||||||||
| Alt | N Kuhn  A Martin | 3 | 4 | 1 | C Frantzen H Jebens | 77 | 6 | ||||||||||||||||||||
| 3 | N Oberleitner T Sandkaulen | 4 | 6 | [10] | 3 | N Oberleitner T Sandkaulen | 63 | 0 | |||||||||||||||||||
 A Merino Christoph Negritu | 6 | 4 | [7] | 3 | N Oberleitner T Sandkaulen | 6 | 6 | ||||||||||||||||||||
 S Rodríguez Taverna JB Torres | 78 | 7 | S Rodríguez Taverna JB Torres | 4 | 3 | ||||||||||||||||||||||
| David Pichler Parikshit Somani | 66 | 5 | 1 | C Frantzen H Jebens | 6 | 6 | |||||||||||||||||||||
 O Roca Batalla N Sánchez Izquierdo | 5 | 6 | [10] | C Bittoun Kouzmine V Uzhylovskyi | 2 | 2 | |||||||||||||||||||||
| Alt | Nicholas Bybel O Crawford | 7 | 3 | [7] | O Roca Batalla N Sánchez Izquierdo | 5 | 4 | ||||||||||||||||||||
| Constantin Bittoun Kouzmine Volodymyr Uzhylovskyi | 77 | 3 | [10] | C Bittoun Kouzmine V Uzhylovskyi | 7 | 6 | |||||||||||||||||||||
| 4 | P Raja R Ramanathan | 65 | 6 | [8] | C Bittoun Kouzmine V Uzhylovskyi | 6 | 62 | [10] | |||||||||||||||||||
 B Harris  H Rocha | 7 | 7 | B Harris H Rocha | 3 | 77 | [7] | |||||||||||||||||||||
| Alt | Lucas Gerch Timo Stodder | 5 | 5 | B Harris H Rocha | 6 | 6 | |||||||||||||||||||||
 M Echargui  Federico Iannaccone | 4 | 3 | 2 | I Liutarevich V Manafov | 4 | 4 | |||||||||||||||||||||
| 2 | I Liutarevich V Manafov | 6 | 6 | ||||||||||||||||||||||||
Jonathan Eysseric and Quentin Halys were the defending champions but chose not to defend their title.
Ruben Bemelmans and Daniel Masur were the defending champions but only Masur chose to defend his title, partnering Marco Bortolotti. They withdrew before their first round match.
Pierre-Hugues Herbert and Albano Olivetti were the defending champions but chose not to defend their title.
Sander Arends and David Pel were the defending champions but only Pel chose to defend his title, partnering Gijs Brouwer. Pel lost in the first round to Jérôme Kym and Joel Schwärzler.
Dustin Brown and Evan King were the defending champions but only Brown chose to defend his title, partnering Tim Sandkaulen. Brown lost in the quarterfinals to Manuel Guinard and Grégoire Jacq.
Romain Arneodo and Jonathan Eysseric were the defending champions but only Eysseric chose to defend his title, partnering Miguel Ángel Reyes-Varela. Eysseric lost in the first round to Manuel Guinard and Grégoire Jacq.
Marcelo Demoliner and Jan-Lennard Struff were the defending champions but chose not to defend their title.
Alexander Erler and Lucas Miedler were the defending champions but chose not to defend their title.
Dustin Brown and Andrea Vavassori were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Nicolas Mahut and Édouard Roger-Vasselin were the defending champions but only Mahut chose to defend his title, partnering Pierre-Hugues Herbert. Mahut lost in the quarterfinals to Constantin Frantzen and Hendrik Jebens.
Denys Molchanov and Aleksandr Nedovyesov were the defending champions but only Molchanov chose to defend his title, partnering Andrey Golubev. Molchanov lost in the final to Sriram Balaji and Andre Begemann.
Santiago González and Édouard Roger-Vasselin defeated Hugo Nys and Jan Zieliński in the final, 6–7(8–10), 7–6(7–3), [10–1] to win the doubles tennis title at the 2023 Swiss Indoors.
Michael Geerts and Patrik Niklas-Salminen were the defending champions but chose not to defend their title.
Defending champions Hugo Nys and Jan Zieliński defeated Constantin Frantzen and Hendrik Jebens 6–4, 6–4 in the final to win the doubles tennis title at the 2023 Moselle Open.
Ivan Liutarevich and Vladyslav Manafov were the defending champions but lost in the semifinals to Ryan Nijboer and Niklas Schell.
Max Purcell and Jason Taylor were the defending champions but chose not to defend their title.
Zizou Bergs and David Pel were the defending champions but chose not to defend their title.
Manuel Guinard and Nino Serdarušić were the defending champions but chose to defend their title with different partners. Guinard partnered Grégoire Jacq and successfully defended his title. Serdarušić partnered Stefano Travaglia but lost in the first round to Jonáš Forejtek and Michael Vrbenský.
Ivan Dodig and Austin Krajicek were the defending champions but chose not to defend their title.
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