| Singles | |
|---|---|
| 2023 Dutch Open | |
| Champion |  Maximilian Marterer |
| Runner-up |  Titouan Droguet |
| Score | 6–4, 6–2 |
Tallon Griekspoor was the defending champion [1] but chose not to defend his title.
Maximilian Marterer won the title after defeating Titouan Droguet 6–4, 6–2 in the final.
Facundo Díaz Acosta (quarterfinals, retired)
Felipe Meligeni Alves (first round)
Jan Choinski (second round)
Jelle Sels (first round) Maximilian Marterer (champion) Jesper de Jong (first round)
Nicholas David Ionel (second round) Titouan Droguet (final)| Semifinals | Final | ||||||||||||
| Q | Mathys Erhard | 5 | 1 | ||||||||||
| 8 | Titouan Droguet | 7 | 6 | ||||||||||
| 8 | Titouan Droguet | 4 | 2 | ||||||||||
| 5 | Maximilian Marterer | 6 | 6 | ||||||||||
| Rudolf Molleker | 4 | 65 | |||||||||||
| 5 | Maximilian Marterer | 6 | 77 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Díaz Acosta | 6 | 6 | ||||||||||||||||||||||||
| U Blanchet | 1 | 2 | 1 | F Díaz Acosta | 6 | 4 | 6 | ||||||||||||||||||||
 S Travaglia | 6 | 6 | S Travaglia | 3 | 6 | 4 | |||||||||||||||||||||
| LL | Luca Potenza | 2 | 3 | 1 | F Díaz Acosta | 3 | 0r | ||||||||||||||||||||
| Q |  T Colson | 66 | 63 | Q | M Erhard | 6 | 0 | ||||||||||||||||||||
| Q | Mathys Erhard | 78 | 77 | Q | M Erhard | 6 | 6 | ||||||||||||||||||||
| M Houkes | 64 | 2 | 7 | ND Ionel | 2 | 3 | |||||||||||||||||||||
| 7 | ND Ionel | 77 | 6 | Q | M Erhard | 5 | 1 | ||||||||||||||||||||
| 3 | J Choinski | 6 | 7 | 8 | T Droguet | 7 | 6 | ||||||||||||||||||||
| S Rodríguez Taverna | 4 | 5 | 3 | J Choinski | 2 | 65 | |||||||||||||||||||||
 M Landaluce | 64 | 5 | WC | A Deckers | 6 | 77 | |||||||||||||||||||||
| WC | Alec Deckers | 77 | 7 | WC | A Deckers | 3 | 6 | 3 | |||||||||||||||||||
| Q | Niels Visker | 2 | 1 | 8 | T Droguet | 6 | 4 | 6 | |||||||||||||||||||
| Q |  E Møller | 6 | 6 | Q | E Møller | 3 | 4 | ||||||||||||||||||||
| Q |  M Vrbenský | 1 | 4 | 8 | T Droguet | 6 | 6 | ||||||||||||||||||||
| 8 | T Droguet | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | J de Jong | 4 | 6 | 3 | |||||||||||||||||||||||
| WC | Guy den Ouden | 6 | 3 | 6 | WC | G den Ouden | 66 | 66 | |||||||||||||||||||
| G Onclin | 6 | 6 | G Onclin | 78 | 78 | ||||||||||||||||||||||
| O Roca Batalla | 2 | 2 | G Onclin | 2 | 2 | ||||||||||||||||||||||
| R Molleker | 6 | 77 | R Molleker | 6 | 6 | ||||||||||||||||||||||
| WC | Sander Jong | 4 | 63 | R Molleker | 6 | 6 | |||||||||||||||||||||
| F Delbonis | 77 | 6 | F Delbonis | 1 | 3 | ||||||||||||||||||||||
| 4 | J Sels | 62 | 2 | R Molleker | 4 | 65 | |||||||||||||||||||||
| 5 | M Marterer | 6 | 6 | 5 | M Marterer | 6 | 77 | ||||||||||||||||||||
 S Diez | 3 | 4 | 5 | M Marterer | 6 | 77 | |||||||||||||||||||||
| Alt | M Guinard | 2 | 2 | J Menšík | 3 | 63 | |||||||||||||||||||||
| J Menšík | 6 | 6 | 5 | M Marterer | 6 | 6 | |||||||||||||||||||||
| Q | J De Loore | 6 | 6 | M Geerts | 1 | 2 | |||||||||||||||||||||
| LL | Àlex Martí Pujolràs | 3 | 3 | Q | J De Loore | 62 | 77 | 4 | |||||||||||||||||||
| M Geerts | 3 | 6 | 6 | M Geerts | 77 | 64 | 6 | ||||||||||||||||||||
| 2 | F Meligeni Alves | 6 | 2 | 2 | |||||||||||||||||||||||
Tomáš Berdych was the defending champion and successfully defended his title, defeating Jack Sock in the final, 7–6(7–1), 6–2.
Viktor Troicki was the defending champion and successfully defended his title, defeating Grigor Dimitrov in the final, 2–6, 6–1, 7–6(9–7).
Daniel Muñoz de la Nava was the defending champion but chose not to defend his title.
Roberto Bautista Agut was the defending champion, but lost in the semifinals to David Goffin.
Albert Ramos Viñolas was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Paolo Lorenzi was the defending champion, but lost in the second round to João Sousa.
Adam Pavlásek was the defending champion but chose not to defend his title.
Ernesto Escobedo was the defending champion but lost in the first round to Mats Moraing.
Steve Darcis was the defending champion but chose not to defend his title.
Alejandro Davidovich Fokina was the reigning champion, but participated in the men's singles qualifying as a wild card instead, losing to Peter Polansky in the second round.
Gianluigi Quinzi was the defending champion but lost in the second round to Tomislav Brkić.
Maximilian Marterer was the defending champion but lost in the quarterfinals to Stefano Travaglia.
Tallon Griekspoor was the defending champion but chose not to defend his title.
Jason Jung was the defending champion but lost in the second round to Maximilian Marterer.
Tallon Griekspoor defeated Benjamin Bonzi in the final, 4–6, 7–5, 6–3 to win the singles tennis title at the 2023 Maharashtra Open. It was his maiden ATP Tour singles title.
Franco Agamenone and Manuel Guinard were the defending champions but only Agamenone chose to defend his title, partnering Salvatore Caruso. Agamenone lost in the first round to Jacopo Berrettini and Andrea Pellegrino.
Juan Bautista Torres was the defending champion but chose not to defend his title.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Marco Cecchinato was the defending champion but chose not to defend his title.
Félix Auger-Aliassime was the reigning champion, but chose to compete in Tokyo instead.