| 2021 Karlsruhe Open | |
|---|---|
| Date | 7 – 12 September |
| Edition | 2nd |
| Category | WTA 125K series |
| Draw | 32S / 8D |
| Prize money | $115,000 |
| Surface | Clay |
| Location | Karlsruhe, Germany |
| Venue | TC Rüppurr |
| Champions | |
| Singles | |
 Mayar Sherif | |
| Doubles | |
 Irina Bara /  Ekaterine Gorgodze | |
The 2021 Karlsruhe Open (also known as the Liqui Moly Open for sponsorship reasons) was a professional tennis tournament played on outdoor clay courts. It was the 2nd edition of the tournament and part of the 2021 WTA 125K series, offering a total of $115,000 in prize money. It took place in Karlsruhe, Germany between 7 and 12 September 2021. The tournament did not take place in 2020 due to the COVID-19 pandemic.[1]
- ^ "Liqui Moly Open Overview". wtatennis.com.