2023 International Challenger Zhangjiagang
Date	28 August – 3 September
Edition	4th
Surface	Hard
Location	Zhangjiagang, China
Champions
Singles
Térence Atmane
Doubles
Ray Ho / Matthew Romios
← 2019 · International Challenger Zhangjiagang · 2024 →

The 2023 International Challenger Zhangjiagang was a professional tennis tournament played on hard courts. It was the fourth edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Zhangjiagang, China between 28 August and 3 September 2023.

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
CHN	Bu Yunchaokete	215	1
FRA	Térence Atmane	218	2
JPN	Kaichi Uchida	240	3
JPN	Rio Noguchi	251	4
AUS	Li Tu	255	5
TPE	Jason Jung	256	6
LTU	Ričardas Berankis	257	7
AUS	James McCabe	281	8

• ¹ Rankings are as of 21 August 2023.^[1]

Other entrants

The following players received wildcards into the singles main draw:

• Li Hanwen
• Sun Fajing
• Te Rigele

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

• Alafia Ayeni
• Rubin Statham

The following players received entry from the qualifying draw:

• Bai Yan
• Cui Jie
• Mikalai Haliak
• Liu Hanyi
• Leonid Sheyngezikht
• Xiao Linang

The following players received entry as lucky losers:

• Colin Sinclair
• Yusuke Takahashi

Champions

Singles

• Térence Atmane def. Mikalai Haliak 6–1, 6–2.

Doubles

• Ray Ho / Matthew Romios def. Francis Alcantara / Sun Fajing 6–3, 6–4.