| Doubles | |
|---|---|
| 2021 Aspria Tennis Cup | |
| Champions |  Vít Kopřiva Jiří Lehečka |
| Runners-up |  Dustin Brown  Tristan-Samuel Weissborn |
| Score | 6–4, 6–0 |
Tomislav Brkić and Ante Pavić were the defending champions [1] but chose not to defend their title.
Vít Kopřiva and Jiří Lehečka won the title after defeating Dustin Brown and Tristan-Samuel Weissborn 6–4, 6–0 in the final.
Luis David Martínez / 
Rafael Matos (first round)
Robert Galloway / Alex Lawson (first round) Evan King / Hunter Reese (first round)
Sadio Doumbia / Fabien Reboul (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | LD Martínez R Matos | 6 | 4 | [8] | |||||||||||||||||||||||
| D Brown T-S Weissborn | 4 | 6 | [10] | D Brown T-S Weissborn | 6 | 6 | |||||||||||||||||||||
 G Durán  G Elias | 61 | 5 | Alt | P Cachin C Ugo Carabelli | 4 | 2 | |||||||||||||||||||||
| Alt | P Cachin C Ugo Carabelli | 77 | 7 | D Brown T-S Weissborn | 7 | 6 | |||||||||||||||||||||
| 3 | E King H Reese | 61 | 65 |  S Walków J Zieliński | 5 | 4 | |||||||||||||||||||||
 R Bonadio  T Gabashvili | 77 | 77 | R Bonadio T Gabashvili | 2 | 1 | ||||||||||||||||||||||
| WC | R Brancaccio G Zeppieri | 63 | 4 | S Walków J Zieliński | 6 | 6 | |||||||||||||||||||||
| S Walków J Zieliński | 77 | 6 | D Brown T-S Weissborn | 4 | 0 | ||||||||||||||||||||||
| WC | F Passaro L Vanni | 6 | 6 | V Kopřiva J Lehečka | 6 | 6 | |||||||||||||||||||||
| WC | Filippo Carpi Leonardo Giuberti | 0 | 2 | WC | F Passaro L Vanni | 1 | 4 | ||||||||||||||||||||
 S Galdós O Luz | 3 | 6 | [6] | 4 | S Doumbia F Reboul | 6 | 6 | ||||||||||||||||||||
| 4 | S Doumbia F Reboul | 6 | 3 | [10] | 4 | S Doumbia F Reboul | 5 | 3 | |||||||||||||||||||
K Drzewiecki  S Martos Gornés | 4 | 64 | V Kopřiva J Lehečka | 7 | 6 | ||||||||||||||||||||||
| F Romboli M Schnur | 6 | 77 | F Romboli M Schnur | 3 | 77 | [14] | |||||||||||||||||||||
| V Kopřiva J Lehečka | 6 | 6 | V Kopřiva J Lehečka | 6 | 61 | [16] | |||||||||||||||||||||
| 2 | R Galloway A Lawson | 4 | 3 | ||||||||||||||||||||||||
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