Gangdong District (Korean: 강동구; RR: Gangdong-gu) is one of the 25 gu that make up the city of Seoul. Gangdong, literally means "east of river".

Jungbu (literally "central part") Express Motorway starts in and passes through Sangil-dong, which is located in the east end of this district. In Amsa-dong, there is a pre-historic heritage site, which is about six thousand years old. On the site, you can find many potteries and houses. The pottery which has been found was made of ceramic and is circular and shaped into a point similar to corn.

• Gangil-dong (강일동 江一洞)
• Godeok-dong (고덕동 高德洞)
• Gil-dong (길동 吉洞)
• Dunchon-dong (둔촌동 遁村洞)
• Myeongil-dong (명일동 明逸洞)
• Sangil-dong (상일동 上一洞)
• Seongnae-dong (성내동 城內洞)
• Amsa-dong (암사동 岩寺洞)
• Cheonho-dong (천호동 千戶洞)

Gangdong District is home to 25 elementary schools, 17 junior high schools and 12 senior high schools, including a specialized high school (Hanyoung Foreign Language High School), and a special education school (Jumong School).

• Seoul Subway Line 5

(Gwangjin-gu) ← Cheonho — Gangdong — Gil-dong — Gubeundari — Myeongil — Godeok — Sangil-dong

• Seoul Subway Line 5 Macheon Branch

Gangdong — Dunchon-dong → (Songpa-gu)

• Seoul Subway Line 8

Amsa — Cheonho — Gangdong-gu Office → (Songpa-gu)

• Geography of South Korea

• Official site (in Korean)
• Official site (in English)