2017 City of Onkaparinga ATP Challenger – Singles

Taylor Fritz was the defending champion but chose not to defend his title.

Peter Gojowczyk won the title after defeating Omar Jasika 6–3, 6–1 in the final.

Seeds
• # 🇺🇸 Donald Young (first round)

• # 🇧🇷 João Souza (first round)

• # 🇺🇸 Denis Kudla (semifinals)

• # 🇨🇦 Peter Polansky (quarterfinals)

• # 🇸🇰 Norbert Gombos (first round)

• # Darian King (quarterfinals)

• # Grega Žemlja (first round)

• # 🇭🇺 Márton Fucsovics (quarterfinals)