2024 Nonthaburi Challenger – Singles

Sho Shimabukuro was the defending champion but chose not to defend his title.

Valentin Vacherot won the title after Lucas Pouille retired trailing 2–3 in the final.

Seeds
• # 🇦🇹 Dennis Novak (first round)

• # 🇨🇿 Zdeněk Kolář (second round)

• # 🇮🇹 Mattia Bellucci (first round, retired)

• # Ivan Gakhov (second round)

• # 🇧🇪 Kimmer Coppejans (second round)

• # 🇰🇿 Beibit Zhukayev (withdrew)

• # 🇮🇹 Stefano Travaglia (first round)

• # 🇮🇹 Marco Cecchinato (first round)