2021 Belgrade Challenger
| 2021 Belgrade Challenger | |
|---|---|
| Date | 12–18 April (men) 26–31 July (women) |
| Edition | 9th (men) 1st (women) |
| Prize money | $115,000 |
| Surface | Clay |
| Location | Belgrade, Serbia |
| Venue | Novak Tennis Center |
| Champions | |
| Men's singles | |
| Roberto Carballés Baena | |
| Women's singles | |
| Anna Karolína Schmiedlová | |
| Men's doubles | |
| Guillermo Durán / Andrés Molteni | |
| Women's doubles | |
| Olga Govortsova / Lidziya Marozava | |
The 2021 Belgrade Challenger was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Belgrade, Serbia between 12 and 18 April 2021.
For the first time, a women's tournament was also held between 26 and 31 July, categorized as a WTA 125 event at the same venue, which was part of 2021 WTA 125K series.