| 2017 Gimcheon Open ATP Challenger | |
|---|---|
| Date | 1–7 May |
| Edition | 4th |
| Draw | 32S / 16D |
| Surface | Hard |
| Location | Gimcheon, South Korea |
| Champions | |
| Singles | |
 Thomas Fabbiano | |
| Doubles | |
 Marco Chiudinelli /  Teymuraz Gabashvili | |
The 2017 Gimcheon Open ATP Challenger was a professional tennis tournament played on hard courts. It was the fourth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Gimcheon, Korea between 1 and 7 May 2017.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q2 |
| Singles | 80 | 48 | 29 | 15 | 7 | 0 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|
| Doubles | 0 | N/A | N/A | N/A |
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 TPE | Lu Yen-hsun | 55 | 1 |
| RUS | Konstantin Kravchuk | 93 | 2 |
 CAN | Vasek Pospisil | 112 | 3 |
 UKR | Illya Marchenko | 118 | 4 |
 SLO | Blaž Kavčič | 128 | 5 |
 BEL | Ruben Bemelmans | 133 | 6 |
 KOR | Lee Duck-hee | 137 | 7 |
 JPN | Go Soeda | 143 | 8 |
The following players received wildcards into the singles main draw:
Chung Yun-seong Hong Seong-chan Kim Cheong-eui Lee Jea-moon The following player received entry into the singles main draw using a protected ranking:
The following player received entry into the singles main draw as a special exempt:
The following players received entry from the qualifying draw:
Thomas Fabbiano def. Teymuraz Gabashvili 7–5, 6–1. Marco Chiudinelli / Teymuraz Gabashvili def. 
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