Amsa-dong (Korean: 암사동) is a dong (neighbourhood) of Gangdong District, Seoul, South Korea. The dong is well known for the Amsa-dong Prehistoric Settlement Site, in which Neolithic remains were excavated after a large amount of diagonal-line patterned earthenware(빗살무늬토기) was exposed by a flood in 1925. It is thought to be a Jomonic settlement which existed prior to the spread of Songgukri-cultural sphere in Korean peninsula during the Korean bronze age. In Amsa Sam-dong, a festival named Amsa sunsa cultural festival is hold annually and parade is performed. It has a subway station of Seoul metropolitan subway 8th line, which functions as the last station of the line. There is only one high school in Amsa-dong named Sunsa highschool. The neighborhood is also known for its large traditional market. Amsa dong is divided in three, Amsa il-dong, Amsa I-dong, Amsa Sam-dong, and community centre is present in every one of these divisions..

• Prehistory of Korea
• Jeulmun Pottery Period
• Dolmen
• Administrative divisions of South Korea

37°33′37.78″N 127°7′48.77″E / 37.5604944°N 127.1302139°E / 37.5604944; 127.1302139

• (in Korean) The Amsa 1 & 4 dong Resident office