2018 Poprad-Tatry ATP Challenger Tour – Singles

Cedrik-Marcel Stebe was the defending champion but chose not to defend his title.

Jozef Kovalík won the title after defeating Arthur De Greef 6–4, 6–0 in the final.

Seeds
• # 🇦🇹 Gerald Melzer (second round, retired)

• # 🇳🇴 Casper Ruud (second round)

• # 🇨🇿 Adam Pavlásek (quarterfinals)

• # 🇸🇰 Jozef Kovalík (champion)

• # 🇪🇬 Mohamed Safwat (quarterfinals)

• # 🇭🇺 Attila Balázs (semifinals)

• # 🇦🇹 Dennis Novak (quarterfinals)

• # 🇧🇾 Uladzimir Ignatik (first round)