2023 Nonthaburi Challenger

The 2023 Nonthaburi Challenger was a professional tennis tournament played on hard courts. It was the 4th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Nonthaburi, Thailand from 2 to 7 January 2023.

2023 Nonthaburi Challenger
Date	2 – 7 January
Edition	4th
Surface	Hard
Location	Nonthaburi, Thailand
Champions
Singles
Dennis Novak
Doubles
Marek Gengel / Adam Pavlásek

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
HUN	Fábián Marozsán	173	1
AUT	Dennis Novak	180	2
TPE	Wu Tung-lin	184	3
FRA	Antoine Escoffier	205	4
ITA	Gianluca Mager	212	5
GBR	Paul Jubb	219	6
AUS	Max Purcell	220	7
TPE	Hsu Yu-hsiou	221	8

• ¹ Rankings are as of 26 December 2022.^[1]

Other entrants

The following players received wildcards into the singles main draw:

• Maximus Jones
• Palaphoom Kovapitukted
• Thantub Suksumrarn

The following players received entry from the qualifying draw:

• Alafia Ayeni
• Evgeny Donskoy
• Giovanni Fonio
• Dayne Kelly
• Lucas Pouille
• Henri Squire

Champions

Singles

Main article: 2023 Nonthaburi Challenger – Singles

• Dennis Novak def. Wu Tung-lin 6–4, 6–4.

Doubles

Main article: 2023 Nonthaburi Challenger – Doubles

• Marek Gengel / Adam Pavlásek def. Robert Galloway / Hans Hach Verdugo 7–6^(7–4), 6–4.