| Singles | |
|---|---|
| 2024 Dutch Open | |
| Champion |  Tomás Barrios Vera |
| Runner-up |  Alexey Zakharov |
| Score | 6–2, 6–1 |
Maximilian Marterer was the defending champion [1] but chose not to defend his title.
Tomás Barrios Vera won the title after defeating Alexey Zakharov 6–2, 6–1 in the final.
Juan Manuel Cerúndolo (second round)
Jurij Rodionov (first round)
Benjamin Hassan (first round)
Matteo Martineau (first round)
Hugo Dellien (first round)
Zsombor Piros (second round)
Joris De Loore (first round)
Kamil Majchrzak (first round, retired)| Semifinals | Final | ||||||||||||
 Daniel Rincón | 4 | 4 | |||||||||||
| Q | Alexey Zakharov | 6 | 6 | ||||||||||
| Q | Alexey Zakharov | 2 | 1 | ||||||||||
| Tomás Barrios Vera | 6 | 6 | |||||||||||
| WC |  Max Houkes | 77 | 4 | 1 | |||||||||
| Tomás Barrios Vera | 64 | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | JM Cerúndolo | 6 | 65 | 6 | |||||||||||||||||||||||
| A Blockx | 4 | 77 | 3 | 1 | JM Cerúndolo | 6 | 0 | 4 | |||||||||||||||||||
 F Agamenone | 2 | 2 | Alt |  Á Guillén Meza | 4 | 6 | 6 | ||||||||||||||||||||
| Alt | Á Guillén Meza | 6 | 6 | Alt | Á Guillén Meza | 3 | 1 | ||||||||||||||||||||
| D Rincón | 6 | 6 | D Rincón | 6 | 6 | ||||||||||||||||||||||
| Q |  M Pucinelli de Almeida | 3 | 3 | D Rincón | 6 | 3 | 6 | ||||||||||||||||||||
 O Jasika | 3 | 4 | 6 | Z Piros | 2 | 6 | 3 | ||||||||||||||||||||
| 6 | Z Piros | 6 | 6 | D Rincón | 4 | 4 | |||||||||||||||||||||
| 4 | M Martineau | 4 | 3 | Q | A Zakharov | 6 | 6 | ||||||||||||||||||||
| Q | Deney Wassermann | 6 | 6 | Q | D Wassermann | 6 | 0 | 3 | |||||||||||||||||||
| Q | J Sels | 5 | 6 | 4 | Q | A Zakharov | 4 | 6 | 6 | ||||||||||||||||||
| Q | Alexey Zakharov | 7 | 2 | 6 | Q | A Zakharov | 6 | 6 | |||||||||||||||||||
| S Travaglia | 2 | 3 | E Dalla Valle | 1 | 3 | ||||||||||||||||||||||
| Enrico Dalla Valle | 6 | 6 | E Dalla Valle | 6 | 4 | 78 | |||||||||||||||||||||
 Filip Jeff Planinšek | 6 | 0 | FJ Planinšek | 4 | 6 | 66 | |||||||||||||||||||||
| 8 | K Majchrzak | 4 | 2r | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5/SE | H Dellien | 4 | 2 | ||||||||||||||||||||||||
 J Veselý | 6 | 6 | J Veselý | 3 | 4 | ||||||||||||||||||||||
| M Dellien | 4 | 78 | 6 | M Dellien | 6 | 6 | |||||||||||||||||||||
| WC | Alec Deckers | 6 | 66 | 4 | M Dellien | 4 | 5 | ||||||||||||||||||||
| WC | M Houkes | 6 | 6 | WC | M Houkes | 6 | 7 | ||||||||||||||||||||
| Q | S Rodríguez Taverna | 3 | 2 | WC | M Houkes | 7 | 2 | 6 | |||||||||||||||||||
| LL |  E Møller | 6 | 66 | 6 | LL | E Møller | 5 | 6 | 2 | ||||||||||||||||||
| 3 | B Hassan | 0 | 78 | 3 | WC | M Houkes | 77 | 4 | 1 | ||||||||||||||||||
| 7 | J De Loore | 3 | 78 | 3 | T Barrios Vera | 64 | 6 | 6 | |||||||||||||||||||
| B Zapata Miralles | 6 | 66 | 6 | B Zapata Miralles | 6 | 6 | |||||||||||||||||||||
| Q | Mathys Erhard | 3 | 6 | 3 |  A Andreev | 3 | 4 | ||||||||||||||||||||
| A Andreev | 6 | 3 | 6 | B Zapata Miralles | 64 | 1 | |||||||||||||||||||||
| WC | G den Ouden | 6 | 6 | T Barrios Vera | 77 | 6 | |||||||||||||||||||||
| F Maestrelli | 1 | 4 | WC | G den Ouden | 0 | 66 | |||||||||||||||||||||
| T Barrios Vera | 77 | 6 | T Barrios Vera | 6 | 78 | ||||||||||||||||||||||
| 2 | J Rodionov | 61 | 1 | ||||||||||||||||||||||||
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). He saved a championship point in the third-set tiebreak.
Daniel Muñoz de la Nava was the defending champion but chose not to defend his title.
Roberto Carballés Baena was the defending champion but retired in the second round facing Maximilian Marterer.
Roberto Bautista Agut was the defending champion, but lost in the semifinals to David Goffin.
Jordan Thompson was the defending champion but chose not to defend his title.
Kyle Edmund was the defending champion but chose not to defend his title.
Roger Federer defeated Alexander Zverev in the final, 6–1, 6–3 to win the singles tennis title at the 2017 Halle Open. It was his record-extending ninth title in Halle. He did not lose a single set in the entire tournament.
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.
Julien Benneteau was the defending champion but chose not to defend his title.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Robin Haase. This was Rublev's first tournament back on tour after missing three months due to a stress fracture in his back.
Maximilian Marterer was the defending champion but chose not to defend his title.
Roberto Bautista Agut was the defending champion, but withdrew before the tournament began.
Dominic Thiem was the defending champion and chose not to defend his title, as he was still competing at the 2020 US Open.
Carlos Alcaraz 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.