| Gangseo | |
| Native Name Lang: | ko |
| Settlement Type: | Autonomous District |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info2: | Gangseo-gu |
| Translit Lang1 Info3: | Kangsǒ-ku |
| Image Blank Emblem: | Gangseo-gu (Busan) logo.png |
| Subdivision Type: | Country |
| Subdivision Name: | South Korea |
| Subdivision Type1: | Region |
| Subdivision Name1: | Yeongnam |
| Subdivision Type2: | Provincial level |
| Subdivision Name2: | Busan |
| Subdivision Type3: | Administrative divisions |
| Subdivision Name3: | 8 administrative dong |
| Subdivision Type4: | 22 court dong |
| Area Total Km2: | 179.05 |
| Population As Of: | 2015 May 31[1] |
| Population Total: | 84,558 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Dialect |
| Population Blank1: | Gyeongsang |
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 form only 7 administrative dong, as follows:
Gangseo District ::
. https://web.archive.org/web/20070928080436/http://www.bsgangseo.go.kr/eng/intro/intro_05.asp#003. dead. 2007-09-28.