2023 Nonthaburi Challenger II
Tennis tournament
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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.[1]
Other entrants
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:
Champions
Singles
Arthur Cazaux def. 
Lloyd Harris 7–6(7–5), 6–2.
Doubles
Yuki Bhambri / Saketh Myneni def. 
Christopher Rungkat / 
Akira Santillan 2–6, 7–6(9–7), [14–12].
