| Date: | 1–7 June |
| Edition: | 2nd |
| Draw: | 32S / 15D |
| Surface: | Hard |
| Prize Money: | $50,000 |
| Location: | Gimcheon, Korea |
| Champs: |  Alexander Sarkissian |
| Champd: |  Li Zhe /  Jose Rubin Statham |
| Before Name: | Adidas International Gimcheon |
The 2015 Gimcheon Open ATP Challenger was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Gimcheon, Korea between 1 and 7 June 2015.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Japan | Go Soeda | 92 | 1 | |
| Chen Ti | 213 | 2 | ||
| Daniel Nguyen | 242 | 3 | ||
 India | Ramkumar Ramanathan | 258 | 4 | |
| Connor Smith | 271 | 5 | ||
| Japan | Takuto Niki | 281 | 6 | |
 Spain | David Pérez Sanz | 303 | 7 | |
| Alexander Sarkissian | 312 | 8 |
The following players received wildcards into the singles main draw:
Lee Duck-hee Lee Jea-moon Kim Young-seok Kwon Soon-wooThe following players used protected ranking to gain entry into the singles main draw:
Karunuday SinghThe following players received entry from the qualifying draw:
Jang Woo-hyeok
Blake Mott Na Jung-woong Christopher O'Connell| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| China | Gong Maoxin | Peng Hsien-yin | 233 | 1 | ||
| Chen Ti | India | Jeevan Nedunchezhiyan | 350 | 2 | ||
| Dean O'Brien | Ruan Roelofse | 421 | 3 | |||
 Ireland | James Cluskey | Ireland | David O'Hare | 428 | 4 |
The following pairs received wildcards into the singles main draw:
Kim Jae-hwan / Na Jung-woong Kwak Sung-hyuk / Um Eun-sik Masamichi Imamura / Hiroki KoshimizuSee main article: 2015 Gimcheon Open ATP Challenger – Singles.
Alexander Sarkissian def. Connor Smith, 7–6(7–5), 6–4[1]See main article: 2015 Gimcheon Open ATP Challenger – Doubles.
Li Zhe / Jose Rubin Statham def. Dean O'Brien / Ruan Roelofse, 6–4, 6–1