2017 Tilia Slovenia Open – Singles

Florian Mayer was the defending champion but chose not to defend his title.

Sergiy Stakhovsky won the title after defeating Matteo Berrettini 6–7(4–7), 7–6(8–6), 6–3 in the final.

Seeds
• # Blaž Kavčič (second round)

• # 🇩🇪 Peter Gojowczyk (first round, retired)

• # 🇺🇦 Sergiy Stakhovsky (champion)

• # 🇸🇰 Lukáš Lacko (first round, retired)

• # 🇧🇾 Egor Gerasimov (first round)

• # 🇷🇸 Filip Krajinović (quarterfinals)

• # 🇪🇸 Adrián Menéndez Maceiras (second round)

• # 🇸🇰 Jozef Kovalík (first round)