2017 Stockton ATP Challenger – Singles

Frances Tiafoe was the defending champion but chose not to defend his title.

Cameron Norrie won the title after defeating Darian King 6–1, 6–3 in the final.

Seeds
• # 🇧🇪 Ruben Bemelmans (first round)

• # 🇺🇸 Tennys Sandgren (quarterfinals)

• # 🇺🇸 Michael Mmoh (semifinals)

• # 🇺🇸 Stefan Kozlov (quarterfinals)

• # 🇮🇳 Ramkumar Ramanathan (first round)

• # Darian King (final)

• # 🇨🇦 Félix Auger-Aliassime (first round)

• # 🇬🇧 Cameron Norrie (champion)