| Doubles | |
|---|---|
| 2023 NÖ Open | |
| Champions |  Zdeněk Kolář  Blaž Rola |
| Runners-up |  Piotr Matuszewski  Kai Wehnelt |
| Score | 6–4, 4–6, [10–6] |
Alexander Erler and Lucas Miedler were the defending champions [1] but chose not to defend their title.
Zdeněk Kolář and Blaž Rola won the title after defeating Piotr Matuszewski and Kai Wehnelt 6–4, 4–6, [10–6] in the final.
Théo Arribagé / Luca Sanchez (semifinals)
Anirudh Chandrasekar / Vijay Sundar Prashanth (first round) Roman Jebavý / Petr Nouza (first round)
Neil Oberleitner / 
Oleg Prihodko (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | T Arribagé L Sanchez | 6 | 6 | ||||||||||||||||||||||||
 Andrey Chepelev Denis Klok | 3 | 3 | 1 | T Arribagé L Sanchez | 77 | 6 | |||||||||||||||||||||
 Jam Vance Leonardo Vega | 4 | 6 | [2] | WC | S Kopp M Ujvary | 65 | 3 | ||||||||||||||||||||
| WC | Sandro Kopp Matthias Ujvary | 6 | 3 | [10] | 1 | T Arribagé L Sanchez | 69 | 77 | [8] | ||||||||||||||||||
| 4 | N Oberleitner O Prihodko | 65 | 5 | P Matuszewski K Wehnelt | 711 | 65 | [10] | ||||||||||||||||||||
| P Matuszewski Kai Wehnelt | 77 | 7 | P Matuszewski K Wehnelt | 6 | 6 | ||||||||||||||||||||||
M Kaśnikowski  Y Milev | 6 | 3 | [8] |  L Margaroli  S Rodríguez Taverna | 0 | 4 | |||||||||||||||||||||
| L Margaroli S Rodríguez Taverna | 4 | 6 | [10] | P Matuszewski K Wehnelt | 4 | 6 | [6] | ||||||||||||||||||||
| David Pichler V Sachko | 6 | 3 | [4] | Z Kolář B Rola | 6 | 4 | [10] | ||||||||||||||||||||
| WC | G Melzer M Moraing | 2 | 6 | [10] | WC | G Melzer M Moraing | 2 | 2 | |||||||||||||||||||
| Z Kolář B Rola | 4 | 78 | [10] | Z Kolář B Rola | 6 | 6 | |||||||||||||||||||||
| 3 | R Jebavý P Nouza | 6 | 66 | [8] | Z Kolář B Rola | 6 | 6 | ||||||||||||||||||||
| V Kopřiva D Svrčina | 4 | 6 | [10] | M Marterer D Masur | 3 | 4 | |||||||||||||||||||||
 S Diez  J Sels | 6 | 2 | [7] | V Kopřiva D Svrčina | |||||||||||||||||||||||
| M Marterer D Masur | 6 | 6 | M Marterer D Masur | w/o | |||||||||||||||||||||||
| 2 | A Chandrasekar VS Prashanth | 4 | 3 | ||||||||||||||||||||||||
Juan Ignacio Chela and Gastón Gaudio were the defending champions, but did not participate this year.
Lucas Arnold and Paul Hanley were the defending champions, but did not participate together this year. Arnold partnered Martín García, losing in the semifinals. Hanley partnered Jim Thomas, winning the title.
Ellis Ferreira and Patrick Galbraith were the defending champions, but Ferreira did not participate this year. Galbraith partnered Brett Steven, successfully defending his title.
David Ferrer was the defending champion, but lost in the first round to Xavier Malisse.
Qualifier Nicolas Mahut won the first title of his career, beating Stanislas Wawrinka in the final, 6–3, 6–4.
Jay Andrijic and Bradley Mousley were the defending champions, but Andrijic was no longer eligible to participate.
Mousley successfully defended the title with Lucas Miedler, defeating Quentin Halys and Johan-Sébastien Tatlot in the final, 6–4, 6–3.
Federico Delbonis was the defending champion, but lost to Facundo Bagnis in the first round.
Pablo Cuevas won the title, defeating Luca Vanni in the final, 6–4, 3–6, 7–6(7–4).
Bob Bryan and Mike Bryan were the defending champions, but they competed in Scottsdale this week.
Nick Kyrgios was the defending champion, but lost in the semifinals to Jo-Wilfried Tsonga.
Donald Johnson and Cyril Suk were the defending champions, but competed this year with different partners. Johnson teamed up with Lucas Arnold Ker and lost in the first round to Nicolas Kiefer and Max Mirnyi, while Suk teamed up with Aleksandar Kitinov and also lost in first round to Roger Federer and Marc Rosset.
Alexander Zverev was the defending champion, but chose not to participate this year.
Andy Murray was the defending champion, but could not participate this year as he was recovering from hip surgery.
Lucas Pouille was the defending champion, but lost in the semifinals to Milos Raonic.
Damir Džumhur was the defending champion, but lost in the quarterfinals to Stan Wawrinka.
Lucas Pouille was the defending champion, but lost in the second round to Marcos Baghdatis.
Jamie Murray and Bruno Soares were the defending champions, but lost in the first round to Robert Lindstedt and Frances Tiafoe.
Dominic Stricker was the defending champion, but was no longer eligible to participate in junior events.
Andrei Pavel and Gabriel Trifu were the defending champions, but were forced to withdraw before their semifinal match.
Pablo Albano and Lucas Arnold Ker were the defending champions, but Albano chose to compete at Cincinnati at the same week. Arnold Ker teamed up with Tom Vanhoudt and lost in the first round to Wayne Arthurs and Richard Fromberg.
Lorenzo Musetti defeated Carlos Alcaraz in the final, 6–4, 6–7(6–8), 6–4 to win the men's singles tennis title at the 2022 Hamburg European Open. It was his maiden ATP Tour title, and he saved two match points en route, in his first round match against Dušan Lajović.
Pedro Martínez and Lorenzo Sonego defeated Tim Pütz and Michael Venus in the final, 5–7, 6–4, [10–8] to win the doubles tennis title at the 2022 Generali Open Kitzbühel.