2021 Split Open II – Doubles
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Andrey Golubev and Aleksandr Nedovyesov were the defending champions but lost in the semifinals to Szymon Walków and Jan Zieliński.
Walków and Zieliński won the title after defeating Grégoire Barrère and Albano Olivetti 6–2, 7–5 in the final.
Seeds
- Ukraine Denys Molchanov / Australia Matt Reid (quarterfinals)
- Kazakhstan Andrey Golubev / Kazakhstan Aleksandr Nedovyesov (semifinals)
- United States Robert Galloway / United States Alex Lawson (semifinals)
- India Purav Raja / Austria Tristan-Samuel Weissborn (first round)
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