| Doubles | |
|---|---|
| 2018 Poprad-Tatry ATP Challenger Tour | |
| Champions |  Tomislav Brkić  Ante Pavić |
| Runners-up |  Nikola Čačić  Luca Margaroli |
| Final score | 6–3, 4–6, [16–14] |
Mateusz Kowalczyk and Andreas Mies were the defending champions but chose not to defend their title.
Tomislav Brkić and Ante Pavić won the title after defeating Nikola Čačić and Luca Margaroli 6–3, 4–6, [16–14] in the final.
Roman Jebavý / Zdeněk Kolář (quarterfinals)
Nathan Pasha / Hunter Reese (first round)
Tomasz Bednarek / Szymon Walków (first round) Robert Galloway / 
Fernando Romboli (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | R Jebavý Z Kolář | 6 | 6 | ||||||||||||||||||||||||
 D Muñoz de la Nava  M Viola | 3 | 4 | 1 | R Jebavý Z Kolář | 66 | 6 | [9] | ||||||||||||||||||||
| Alt | S Gutiérrez Ferrol David Poljak | 1 | 6 | [7] | N Čačić L Margaroli | 78 | 3 | [11] | |||||||||||||||||||
| N Čačić L Margaroli | 6 | 3 | [10] | N Čačić L Margaroli | 6 | 77 | |||||||||||||||||||||
| 3 | T Bednarek S Walków | 3 | 2 |  M Neuchrist T-S Weissborn | 2 | 62 | |||||||||||||||||||||
| M Neuchrist T-S Weissborn | 6 | 6 | M Neuchrist T-S Weissborn | 6 | 6 | ||||||||||||||||||||||
| Marek Jaloviec V Šafránek | 3 | 1 | WC |  F Polášek P Rikl | 4 | 3 | |||||||||||||||||||||
| WC | F Polášek P Rikl | 6 | 6 | N Čačić L Margaroli | 3 | 6 | [14] | ||||||||||||||||||||
| I Sabanov M Sabanov | 64 | 6 | [10] | T Brkić A Pavić | 6 | 4 | [16] | ||||||||||||||||||||
| WC | Andrej Glváč Peter Vajda | 77 | 4 | [5] | I Sabanov M Sabanov | 4 | 2 | ||||||||||||||||||||
 A Smirnov Volodymyr Uzhylovskyi | 2 | 5 | 4 | R Galloway F Romboli | 6 | 6 | |||||||||||||||||||||
| 4 | R Galloway F Romboli | 6 | 7 | 4 | R Galloway F Romboli | 62 | 3 | ||||||||||||||||||||
| T Brkić A Pavić | 6 | 4 | [12] | T Brkić A Pavić | 77 | 6 | |||||||||||||||||||||
| WC | I Klec Dominik Šproch | 0 | 6 | [10] | T Brkić A Pavić | w/o | |||||||||||||||||||||
 N Desein G Melzer | 6 | 6 | N Desein G Melzer | ||||||||||||||||||||||||
| 2 | N Pasha H Reese | 4 | 4 | ||||||||||||||||||||||||
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