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Gangseo 강서구  | 
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|---|---|---|
| Autonomous District | ||
| Korean transcription(s) | ||
| • Hanja | ||
| • Revised Romanization | Gangseo-gu | |
| • McCune-Reischauer | Kangsǒ-ku | |
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| Country | South Korea | |
| Region | Yeongnam | |
| Provincial level | Busan | |
| Administrative divisions | 7 administrative dong | |
| Area | ||
| • Total | 179.05 km2 (69.13 sq mi) | |
| Population (2015 May 31) | ||
| • Total | 84,558 | |
| • Density | 470/km2 (1,200/sq mi) | |
| • Dialect | Gyeongsang | |
| Website | www | 
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Gangseo District (literally west of river district) is a gu on the west side of Nakdong River in Busan, South Korea. It has an area of 179.05 km², and a population of about 66,000; it has a lower population density than Gijang county of Busan. Gangseo-gu was part of Buk-gu from its creation in 1978 to 1989 when it became an independent gu.
Gangseo-gu is the westernmost gu in Busan and it shares a common borders with Gimhae on its north-west side and Jinhae-gu, Changwon on its south-west side.
Gangseo-gu is the birthplace of the Gaya civilization.
Gimhae International Airport, Heungguk Temple, Myeongwol Temple, as well as the Eulsukdo bird sanctuary are located in Gangseo-gu.
Gangseo-gu is divided into 22 legal dong. They have been grouped together to from only 7 administrative dong, as follows:
Coordinates: 35°12′25″N 128°58′50″E / 35.20694°N 128.98056°E