Gachon University is an academic institute located in South Korea. The current structure of Gachon university is the result of a merger between four existing universities. Gachon University of Medicine and Science and Gachon-gil College merged in 2007, Kyungwon University and Kyungwon College merged in 2007, and Gachon University of Medicine and Science and Kyungwon University merged in 2012. Gachon University has three campuses for undergraduates, the Global Campus (primary) located in Seongnam, satellite campuses on Ganghwa Island and in Yeonsu-dong, and the School of Medicine in Guwol-dong, Namdong-gu, Incheon, South Korea. Gachon University signed a strategic partnership with Hawaii Pacific to allow students to study abroad.

Seongnam is the fourth largest city in South Korea's Gyeonggi Province after Suwon and the 10th largest city in the country. Its population is approximately one million. Seongnam is a satellite city of Seoul. It is largely a residential city located immediately southeast of Seoul and belongs to the Seoul Capital Area.