2023 Nonthaburi Challenger II

The 2023 Nonthaburi Challenger II was a professional tennis tournament played on hard courts. It was the 5th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Nonthaburi, Thailand from 9 to 14 January 2023.

2023 Nonthaburi Challenger II
Date	9 – 14 January
Edition	5th
Surface	Hard
Location	Nonthaburi, Thailand
Champions
Singles
Arthur Cazaux
Doubles
Yuki Bhambri / Saketh Myneni

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
AUT	Dennis Novak	180	1
RSA	Lloyd Harris	237	2
POL	Kacper Żuk	245	3
CZE	Zdeněk Kolář	247	4
BEL	Michael Geerts	254	5
POL	Daniel Michalski	260	6
JPN	Sho Shimabukuro	264	7
USA	Tennys Sandgren	265	8

• ¹ Rankings are as of 2 January 2023.

Other entrants

The following players received wildcards into the singles main draw:

• Palaphoom Kovapitukted
• Kasidit Samrej
• Wishaya Trongcharoenchaikul

The following players received entry into the singles main draw as alternates:

• Prajnesh Gunneswaran
• Billy Harris

The following players received entry from the qualifying draw:

• Alafia Ayeni
• Arthur Cazaux
• Evgeny Donskoy
• Giovanni Fonio
• Jason Jung
• Henri Squire

Champions

Singles

Main article: 2023 Nonthaburi Challenger II – Singles

• Arthur Cazaux def. Lloyd Harris 7–6^(7–5), 6–2.

Doubles

Main article: 2023 Nonthaburi Challenger II – Doubles

• Yuki Bhambri / Saketh Myneni def. Christopher Rungkat / Akira Santillan 2–6, 7–6^(9–7), [14–12].