2017 Busan Open – Singles

Konstantin Kravchuk was the defending champion but lost in the first round to Kwon Soon-woo.

Vasek Pospisil won the title after defeating Go Soeda 6–1, 6–2 in the final.

Seeds
• # Lu Yen-hsun (quarterfinals, retired)

• # 🇨🇦 Vasek Pospisil (champion)

• # Blaž Kavčič (second round)

• # 🇮🇱 Dudi Sela (semifinals)

• # 🇺🇦 Illya Marchenko (first round)

• # 🇷🇺 Konstantin Kravchuk (first round)

• # 🇮🇹 Thomas Fabbiano (first round)

• # 🇧🇪 Ruben Bemelmans (first round)