| 2023 Slovak Open | |
|---|---|
| Date | 9–15 October (men) 30 October – 5 November (women) |
| Edition | 25th (men) 10th (women) |
| Category | ATP Challenger Tour ITF Women's World Tennis Tour |
| Surface | Hard (Indoor) |
| Location | Bratislava, Slovakia |
| Champions | |
| Men's singles | |
 Gabriel Diallo | |
| Women's singles | |
 Ella Seidel | |
| Men's doubles | |
 Sriram Balaji / Andre Begemann | |
| Women's doubles | |
 Estelle Cascino /  Jesika Malečková | |
The 2023 Slovak Open was a professional tennis tournament played on hard courts. It was the 25th edition of the tournament which was part of the 2023 ATP Challenger Tour and the tenth edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Bratislava, Slovakia between 9 and 15 October 2023 for the men and 30 October and 5 November for the women.