See main article: article and 2018 Poprad-Tatry ATP Challenger Tour.
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.