2018 Gimcheon Open ATP Challenger – Doubles

Marco Chiudinelli and Teymuraz Gabashvili were the defending champions but chose not to defend their title.

Ruan Roelofse and John-Patrick Smith won the title after defeating Sanchai and Sonchat Ratiwatana 6–2, 6–3 in the final.

Seeds
• # Ruan Roelofse / 🇦🇺 John-Patrick Smith (champions)

• # 🇧🇾 Aliaksandr Bury / Peng Hsien-yin (semifinals)

• # 🇹🇭 Sanchai Ratiwatana / 🇹🇭 Sonchat Ratiwatana (final)

• # Hsieh Cheng-peng /  Christopher Rungkat (quarterfinals)