2017 Hungarian Challenger Open – Singles

Marius Copil was the defending champion but lost in the quarterfinals to Jürgen Melzer.

Melzer won the title after defeating Márton Fucsovics 7–6(8–6), 6–2 in the final.

Seeds
• # 🇸🇰 Lukáš Lacko (withdrew)

• # 🇺🇦 Sergiy Stakhovsky (first round)

• # 🇷🇴 Marius Copil (quarterfinals)

• # 🇮🇹 Thomas Fabbiano (first round)

• # 🇷🇺 Evgeny Donskoy (first round)

• # 🇸🇰 Norbert Gombos (second round)

• # 🇰🇷 Lee Duck-hee (first round)

• # 🇮🇹 Luca Vanni (quarterfinals)