2021 Reinert Open – Doubles
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Amina Anshba and Anastasia Dețiuc were the defending champions but chose not to participate.
Anna Danilina and Valeriya Strakhova won the title, defeating Mirjam Björklund and Jaimee Fourlis in the final, 4–6, 7–5, [10–4].
Seeds
- Kazakhstan Anna Danilina / Ukraine Valeriya Strakhova (champions)
- Germany Tamara Korpatsch / Slovakia Tereza Mihalíková (quarterfinals)
- Germany Tayisiya Morderger / Germany Yana Morderger (semifinals)
- India Rutuja Bhosale / Netherlands Arianne Hartono (semifinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted