The 2024 Nonthaburi Challenger III was a professional tennis tournament played on hard courts.

It was the 9th edition of the tournament which was part of the 2024 ATP Challenger Tour.

It took place in Nonthaburi, Thailand from 15 to 21 January 2024.

The following players received wildcards into the singles main draw: The following players received entry into the singles main draw as alternates: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: