| 2017 International Challenger Zhangjiagang | |
|---|---|
| Date | 5–10 September |
| Edition | 1st |
| Surface | Hard |
| Location | Zhangjiagang, China |
| Champions | |
| Singles | |
 Jason Jung | |
| Doubles | |
 Gao Xin / Zhang Zhizhen | |
The 2017 International Challenger Zhangjiagang was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Zhangjiagang, China between 5 and 10 September 2017.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 SUI | Henri Laaksonen | 94 | 1 |
 JPN | Go Soeda | 130 | 2 |
 KOR | Lee Duck-hee | 163 | 3 |
| JPN | Yasutaka Uchiyama | 187 | 4 |
| JPN | Hiroki Moriya | 213 | 5 |
 EGY | Mohamed Safwat | 219 | 6 |
| CHN | Wu Di | 221 | 7 |
| TPE | Chen Ti | 257 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Yuya Kibi
Marinko Matosevic Bradley Mousley 
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