2023 Internazionali di Tennis del Friuli Venezia Giulia – Men's singles

Zhang Zhizhen was the defending champion but chose not to defend his title.

Matteo Gigante won the title after defeating Lukas Neumayer 6–0, 6–2 in the final.

Seeds
• # 🇦🇹 Dennis Novak (first round)

• # 🇮🇹 Francesco Passaro (second round)

• # 🇮🇹 Riccardo Bonadio (semifinals)

• # 🇮🇹 Matteo Gigante (champion)

• # 🇷🇴 Nicholas David Ionel (second round)

• # 🇦🇷 Andrea Collarini (first round, retired)

• # 🇮🇹 Edoardo Lavagno (second round)

• # 🇦🇷 Román Andrés Burruchaga (first round)