The name
Gayang-dong originated from the combination of two former localities:
Gamadong (加麻洞) and
Goyang-ri (古陽里). The name was formed by taking the character "Ga" (加) from
Gamadong and "Yang" (陽) from
Goyang-ri. The western region of the
Han River, where Gayang-dong is located, corresponds to the historical area known as
Michuhol. According to the
Samguk Sagi, locations such as Inbeollo-hyeon (present-day Siheung), Jechapaeui-hyeon (present-day Gangseo District), and Maesohol-hyeon (present-day Incheon) were part of Michuhol. These references indicate that the area now known as Gangseo-gu has historical ties to the early
Baekje kingdom. On March 1, 1914, during a nationwide administrative reorganization under Japanese rule, several villages from Gunnae-myeon in Yangcheon-gun, Gyeonggi Province—including Hyanggyo-dong, Goyang-ri, Gamadong, Seongjaejeong-ri, and Gongam-ri—were merged to form Gayang-ri in Yangdong-myeon, Gimpo-gun. On January 1, 1963, Gayang-ri was incorporated into Seoul and became part of
Yeongdeungpo District. It was transferred to the newly established
Gangseo District on September 1, 1977, following the division of Yeongdeungpo District. On April 1, 1993, Gayang-dong was subdivided into Gayang 1-dong, 2-dong, and 3-dong. ==Attractions==