2024 Nonthaburi Challenger II – Singles

Valentin Vacherot was the defending champion and successfully defended his title, defeating Manuel Guinard 7–5, 7–6(7–4) in the final.

Seeds
• # 🇦🇹 Dennis Novak (quarterfinals)

• # Jason Jung (second round)

• # 🇫🇷 Lucas Poullain (first round)

• # Evgeny Donskoy (first round)

• # 🇭🇰 Coleman Wong (second round)

• # 🇺🇸 Tennys Sandgren (second round)

• # 🇩🇪 Henri Squire (first round)

• # 🇺🇸 Brandon Holt (quarterfinals)