2023 Tenerife Challenger III – Singles

Matteo Arnaldi was the defending champion but chose not to defend his title.

Matteo Gigante won the title after defeating Stefano Travaglia 6–3, 6–2 in the final.

Seeds
• # 🇮🇹 Francesco Passaro (second round)

• # Alexander Shevchenko (first round)

• # 🇦🇹 Filip Misolic (first round, retired)

• # 🇮🇹 Raúl Brancaccio (second round)

• # 🇬🇧 Ryan Peniston (semifinals)

• # 🇺🇦 Oleksii Krutykh (first round)

• # 🇪🇸 Carlos Taberner (first round, retired)

• # 🇮🇹 Francesco Maestrelli (quarterfinals)