| Type: | ATP Challenger |
| Gimcheon Open ATP Challenger | |
| Current: | 2018 Gimcheon Open ATP Challenger |
| Event Name: | Gimcheon Open ATP Challenger |
| Location: | Gimcheon, South Korea |
| Venue: | Gimcheon Sports Town Tennis Courts |
| Category: | ATP Challenger Tour |
| Surface: | Hard |
| Draw: | 32S/32Q/16D |
| Prize Money: | $50,000 |
The Gimcheon Open ATP Challenger (formerly known as Adidas International Gimcheon due to sponsorship reasons) is a tennis tournament held in Gimcheon, South Korea since 2014. The event is part of the ATP Challenger Tour and is played on outdoor hard courts.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
 Yoshihito Nishioka | 6–4, 7–5 | |||
 Thomas Fabbiano | 7–5, 6–1 | |||
 Max Purcell | 3–6, 7–6(8–6), 5–1 ret. | |||
 Alexander Sarkissian | Connor Smith | 7–6(7–5), 6–4 | ||
 Gilles Müller | 7–6(7–5), 5–7, 6–4 |
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| Ruan Roelofse John-Patrick Smith | 6–2, 6–3 | |||
Marco Chiudinelli  Teymuraz Gabashvili | 6–1, 6–3 | |||
| Hsieh Cheng-peng Yang Tsung-hua | Walkover | |||
 Li Zhe  Jose Rubin Statham | 6–4, 6–1 | |||
| Samuel Groth Chris Guccione | 6–7(5–7), 7–5, [10–4] |