2020 Slovak Open – Doubles
# 2020 Slovak Open – Doubles

Frederik Nielsen and Tim Pütz were the defending champions but chose not to defend their title.

Harri Heliövaara and Emil Ruusuvuori won the title after defeating Lukáš Klein and Alex Molčan 6–4, 6–3 in the final.

## Seeds

* Denys Molchanov / Sergiy Stakhovsky (quarterfinals)
* Karol Drzewiecki / Szymon Walków (semifinals)
* Lloyd Glasspool / Alex Lawson (first round)
* Romain Arneodo / Albano Olivetti (quarterfinals)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | D Molchanov S Stakhovsky | $7^{10}$ | 6 | | | | | | | | | | | | | |
| | J Lenz Y Maden | $6^8$ | 1 | | 1 | D Molchanov S Stakhovsky | 6 | 1 | [4] | | | | | | | |
| | M Cressy A Hoang | $6^7$ | 5 | | | H Heliövaara E Ruusuvuori | 4 | 6 | [10] | | | | | | | |
| | H Heliövaara E Ruusuvuori | $7^9$ | 7 | | | | | | | | H Heliövaara E Ruusuvuori | $7^7$ | $7^7$ | | | |
| 4 | R Arneodo A Olivetti | 6 | $7^7$ | | | | | | | | M Guinard A Rinderknech | $6^2$ | $6^4$ | | | |
| | I Sabanov M Sabanov | 3 | $6^5$ | | 4 | R Arneodo A Olivetti | 4 | 6 | [5] | | | | | | | |
| WC | Michal Novanský Lukáš Palovič | 2 | 5 | | | M Guinard A Rinderknech | 6 | 4 | [10] | | | | | | | |
| | M Guinard A Rinderknech | 6 | 7 | | | | | | | | | | | H Heliövaara E Ruusuvuori | 6 | 6 |
| | L Klein A Molčan | 7 | 6 | | | | | | | | | | | L Klein A Molčan | 4 | 3 |
| | R Safiullin A Vatutin | 5 | 3 | | | L Klein A Molčan | $6^7$ | 6 | [10] | | | | | | | |
| | J Cerretani L Margaroli | $7^7$ | 4 | [12] | | J Cerretani L Margaroli | $7^9$ | 4 | [5] | | | | | | | |
| 3 | L Glasspool A Lawson | $6^3$ | 6 | [10] | | | | | | | L Klein A Molčan | $7^7$ | 6 | | | |
| | S Diez B Rola | $6^1$ | 6 | [10] | | | | | | 2 | K Drzewiecki S Walków | $6^5$ | 3 | | | |
| WC | F Horanský Lukáš Pokorný | $7^7$ | 4 | [6] | | S Diez B Rola | $6^2$ | 5 | | | | | | | | |
| WC | Tomáš Líška Vadym Ursu | 3 | 6 | [9] | 2 | K Drzewiecki S Walków | $7^7$ | 7 | | | | | | | | |
| 2 | K Drzewiecki S Walków | 6 | 3 | [11] | | | | | | | | | | | | |
