| 2023 UniCredit Czech Open | |
|---|---|
| Date | 5 – 10 June |
| Edition | 30th |
| Surface | Clay |
| Location | Prostějov, Czech Republic |
| Venue | TK Agrofert Prostějov |
| Champions | |
| Singles | |
 Dalibor Svrčina | |
| Doubles | |
 Ariel Behar / Adam Pavlásek | |
The 2023 UniCredit Czech Open was a professional tennis tournament played on clay courts. It was the 30th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Prostějov, Czech Republic between 5 and 10 June 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| CZE
|
Jiří Lehečka | 41 | 1 |
 ARG
|
Federico Coria | 96 | 2 |
| ARG
|
Facundo Bagnis | 124 | 3 |
 HUN
|
Zsombor Piros | 125 | 4 |
| CZE
|
Tomáš Macháč | 127 | 5 |
 SVK
|
Lukáš Klein | 133 | 6 |
 SWE
|
Elias Ymer | 155 | 7 |
 ITA
|
Flavio Cobolli | 159 | 8 |
The following players received wildcards into the singles main draw:
Jiří Lehečka Jakub Menšík Lukáš PokornýThe following player received entry into the singles main draw as a special exempt:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Dalibor Svrčina def. Tomáš Macháč 6–4, 6–2. Ariel Behar / Adam Pavlásek def. Marco Bortolotti / 
Sergio Martos Gornés 7–5, 6–4.
