2023 Golden Gate Open – Men's singles

This was the first edition of the tournament.

Constant Lestienne won the title after defeating Emilio Nava 7–6(7–4), 6–2 in the final.

Seeds
• # 🇫🇷 Arthur Rinderknech (withdrew)

• # 🇯🇵 Yosuke Watanuki (semifinals, withdrew)

• # 🇺🇸 Michael Mmoh (quarterfinals)

• # 🇫🇷 Constant Lestienne (champion)

• # Borna Gojo (quarterfinals)

• # 🇦🇺 James Duckworth (quarterfinals)

• # 🇺🇸 Aleksandar Kovacevic (quarterfinals)

• # 🇦🇷 Thiago Agustín Tirante (first round)