| 2023 Meerbusch Challenger | |
|---|---|
| Date | 7–13 August |
| Edition | 10th |
| Surface | Clay |
| Location | Meerbusch, Germany |
| Champions | |
| Singles | |
 Jan Choinski | |
| Doubles | |
 Manuel Guinard / Grégoire Jacq | |
The 2023 Rhein Asset Open was a professional tennis tournament played on clay courts. It was the 10th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Meerbusch, Germany, between 7 and 13 August 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 AUT | Jurij Rodionov | 107 | 1 |
| GBR | Jan Choinski | 148 | 2 |
 IND | Sumit Nagal | 179 | 3 |
| FRA | Titouan Droguet | 180 | 4 |
 ARG | Camilo Ugo Carabelli | 182 | 5 |
 BUL | Dimitar Kuzmanov | 201 | 6 |
 UKR | |||
 BEL | Gauthier Onclin | 208 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as a special exempt:
Gerard Campana LeeThe following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Tibo Colson 
Guy den Ouden Felix Gill 
Ergi Kırkın 
Martin Krumich
Orlando Luz The following player received entry as a lucky loser:
Miguel Damas Jan Choinski def. Camilo Ugo Carabelli 6–4, 6–0. Manuel Guinard / Grégoire Jacq def. Fernando Romboli / Marcelo Zormann 7–5, 7–6(7–3).