# 2023 Meerbusch Challenger – Singles

Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Jan Choinski won the title after defeating Camilo Ugo Carabelli 6–4, 6–0 in the final.

## Seeds

* Jurij Rodionov (first round)
* Jan Choinski (champion)
* Sumit Nagal (second round)
* Titouan Droguet (semifinals)
* Camilo Ugo Carabelli (final)
* Dimitar Kuzmanov (quarterfinals)
* Oleksii Krutykh (withdrew)
* Gauthier Onclin (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Manuel Guinard | 6$^5$ | 0 | | | | |
| 5 | Camilo Ugo Carabelli | 7$^7$ | 6 | | | | |
| 5 | Camilo Ugo Carabelli | 7$^7$ | 6 | 5 | Camilo Ugo Carabelli | 4 | 0 |
| | | | | 2 | Jan Choinski | 6 | 6 |
| 4 | Titouan Droguet | 1 | 4 | 2 | Jan Choinski | 6 | 6 |
| 2 | Jan Choinski | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Rodionov | 4 | 2 | | | | | | | | | | | | | | |
| | H Squire | 6 | 6 | | | H Squire | 4 | 4 | | | | | | | | | |
| | M Guinard | 6 | 5 | 6 | | M Guinard | 6 | 6 | | | | | | | | | |
| Q | O Luz | 4 | 7 | 3 | | | | | | M Guinard | 7$^7$ | 6 | | | | | |
| | K Feldbausch | 7 | 6 | | | | | | | D Rincón | 6$^0$ | 1 | | | | | |
| | M Houkes | 5 | 4 | | | K Feldbausch | 2 | 1 | | | | | | | | | |
| | D Rincón | 6 | 6 | | | D Rincón | 6 | 6 | | | | | | | | | |
| Q | F Gill | 4 | 2 | | | | | | | | | | | | M Guinard | 6$^5$ | 0 |
| 3 | S Nagal | 6 | 6 | | | | | | | | | | | 5 | C Ugo Carabelli | 7$^7$ | 6 |
| | S Rodríguez Taverna | 3 | 3 | | 3 | S Nagal | 2 | 2 | | | | | | | | | |
| | B Hassan | 7$^7$ | 6 | | | B Hassan | 6 | 6 | | | | | | | | | |
| | H Laaksonen | 6$^3$ | 1 | | | | | | | B Hassan | 6$^2$ | 6 | 2 | | | | |
| Q | E Kırkın | 6 | 7$^7$ | | | | | | 5 | C Ugo Carabelli | 7$^7$ | 1 | 6 | | | | |
| | R Molleker | 4 | 6$^3$ | | Q | E Kırkın | 1 | 4 | | | | | | | | | |
| Q | T Colson | 2 | 2 | | 5 | C Ugo Carabelli | 6 | 6 | | | | | | | | | |
| 5 | C Ugo Carabelli | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | G Onclin | 2 | 7 | 6 | | | | | | | | | | | | | | |
| SE | Gerard Campana Lee | 6 | 5 | 1 | 8 | G Onclin | 6$^4$ | 6$^4$ | | | | | | | | | | |
| WC | MH Rehberg | 2 | 6 | 6 | WC | MH Rehberg | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | D Michalski | 6 | 1 | 4 | | | | | | WC | MH Rehberg | 6$^6$ | 4 | | | | | |
| Q | Martin Krumich | 7$^7$ | 5 | 4 | | | | | | 4 | T Droguet | 7$^8$ | 6 | | | | | |
| | D Yevseyev | 6$^3$ | 7 | 6 | | D Yevseyev | 1 | 3 | | | | | | | | | | |
| Q | G den Ouden | 4 | 2 | | 4 | T Droguet | 6 | 6 | | | | | | | | | | |
| 4 | T Droguet | 6 | 6 | | | | | | | | | | | | 4 | T Droguet | 1 | 4 |
| 6 | D Kuzmanov | 6 | 6 | | | | | | | | | | | | 2 | J Choinski | 6 | 6 |
| | O Roca Batalla | 2 | 4 | | 6 | D Kuzmanov | 7 | 6 | | | | | | | | | | |
| | M Geerts | 7 | 6$^3$ | 6 | | M Geerts | 5 | 3 | | | | | | | | | | |
| WC | M Möller | 5 | 7$^7$ | 4 | | | | | | 6 | D Kuzmanov | 6 | 5 | 3 | | | | |
| LL | Miguel Damas | 4 | 2 | | | | | | | 2 | J Choinski | 2 | 7 | 6 | | | | |
| Alt | L Wessels | 6 | 6 | | Alt | L Wessels | 2 | 7$^7$ | 6$^5$ | | | | | | | | | |
| WC | N Kuhn | 6$^4$ | 4 | | 2 | J Choinski | 6 | 6$^0$ | 7$^7$ | | | | | | | | | |
| 2 | J Choinski | 7$^7$ | 6 | | | | | | | | | | | | | | | |