| Doubles | |
|---|---|
| 2022 AON Open Challenger | |
| Champions |  Dustin Brown  Andrea Vavassori |
| Runners-up |  Roman Jebavý Adam Pavlásek |
| Score | 6–2, 6–2 |
Ariel Behar and Gonzalo Escobar were the defending champions [1] but chose not to defend their title.
Dustin Brown and Andrea Vavassori won the title after defeating Roman Jebavý and Adam Pavlásek 6–2, 6–2 in the final.
Romain Arneodo / 
Tristan-Samuel Weissborn (quarterfinals) Roman Jebavý / Adam Pavlásek (final) Dustin Brown / Andrea Vavassori (champions) Marco Bortolotti / 
Sergio Martos Gornés (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | R Arneodo T-S Weissborn | 6 | 6 | ||||||||||||||||||||||||
| Davide Pozzi Augusto Virgili | 0 | 1 | 1 | R Arneodo T-S Weissborn | 6 | 3 | [11] | ||||||||||||||||||||
 V Manafov O Prihodko | 6 | 1 | [10] | V Manafov O Prihodko | 2 | 6 | [13] | ||||||||||||||||||||
 F Fallert H Jebens | 3 | 6 | [6] | V Manafov O Prihodko | 4 | 4 | |||||||||||||||||||||
| 3 | D Brown A Vavassori | 6 | 6 | 3 | D Brown A Vavassori | 6 | 6 | ||||||||||||||||||||
 I Liutarevich V Uzhylovskyi | 2 | 4 | 3 | D Brown A Vavassori | 4 | 6 | [10] | ||||||||||||||||||||
| WC | A Basso G Ferrari | 3 | 6 | [2] | S Napolitano A Weis | 6 | 2 | [8] | |||||||||||||||||||
| S Napolitano Alexander Weis | 6 | 1 | [10] | 3 | D Brown A Vavassori | 6 | 6 | ||||||||||||||||||||
| 2 | R Jebavý A Pavlásek | 2 | 2 | ||||||||||||||||||||||||
 LD Martínez  I Zelenay | 4 | ||||||||||||||||||||||||||
| WC | M Gigante G Zeppieri | 60 | 6 | [10] | WC | M Gigante G Zeppieri | 1r | ||||||||||||||||||||
| 4 | M Bortolotti S Martos Gornés | 77 | 1 | [7] | LD Martínez I Zelenay | 4 | 5 | ||||||||||||||||||||
| R Brancaccio F Passaro | 4 | 6 | [12] | 2 | R Jebavý A Pavlásek | 6 | 7 | ||||||||||||||||||||
| M Arnaldi A Pellegrino | 6 | 3 | [10] | R Brancaccio F Passaro | 63 | 3 | |||||||||||||||||||||
 M Martineau A Vatutin | 6 | 2 | [6] | 2 | R Jebavý A Pavlásek | 77 | 6 | ||||||||||||||||||||
| 2 | R Jebavý A Pavlásek | 2 | 6 | [10] | |||||||||||||||||||||||
Roman Jebavý and Jiří Veselý were the defending champions, but Veselý decided not to participate this year. Jebavý played alongside Adam Pavlásek, but they lost to Dino Marcan and Antonio Šančić in the quarterfinals.
Austin Krajicek and Franko Škugor were the defending champions, but Krajicek chose to compete at the Summer Olympics and Škugor chose not to defend his title.
This was the first edition of the tournament.
Gero Kretschmer and Alexander Satschko were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Dustin Brown and Antoine Hoang were the defending champions but only Brown chose to defend his title, partnering Andrea Vavassori. Brown lost in the quarterfinals to Ruben Bemelmans and Daniel Masur.
Hugo Nys and Jan Zieliński 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.
Orlando Luz and Rafael Matos were the defending champions but chose not to defend their title.
Roman Jebavý and Igor Zelenay were the defending champions but only Jebavý chose to defend his title, partnering Adam Pavlásek. Jebavý lost in the final to Neil Oberleitner and Philipp Oswald.
Rafael Matos and Felipe Meligeni Alves were the defending champions but chose not to defend their title.
Dustin Brown and Andrea Vavassori were the defending champions but only Brown chose to defend his title, partnering Evan King. Brown lost in the first round to Lukáš Klein and Igor Zelenay.
Santiago González and Andrés Molteni were the defending champions but chose not to defend their title.
Antonio Šančić and Tristan-Samuel Weissborn were the defending champions but only Weissborn chose to defend his title, partnering Romain Arneodo. Weissborn lost in the quarterfinals to Marco Bortolotti and Sergio Martos Gornés.
Filip Horanský and Sergiy Stakhovsky 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 Dan Added. Olivetti successfully defended his title.
Zdeněk Kolář and Andrea Vavassori were the defending champions but chose not to defend their title.
Yuki Bhambri and Saketh Myneni were the defending champions but chose not to defend their title.
Sriram Balaji and Jeevan Nedunchezhiyan were the defending champions but chose not to defend their title.
Blaž Rola and Nino Serdarušić defeated the defending champion Simone Bolelli and his partner Andrea Vavassori in the final, 4–6, 7–6(7–2), [15–13] to win the doubles tennis title at the 2023 Croatia Open Umag.