| Seo | |
| Native Name Lang: | ko |
| Settlement Type: | Autonomous District |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info2: | Seo-gu |
| Translit Lang1 Info3: | Sŏ-gu |
| Image Blank Emblem: | Seo-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: | 14 administrative dong |
| Area Total Km2: | 13.67 |
| Population As Of: | 2010[1] |
| Population Total: | 116600 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Dialect |
| Population Blank1: | Gyeongsang |
Seo District (literally west district) is a gu, or district, in south-west central Busan, South Korea.
Seo-gu is divided into 8 legal dong, which altogether comprise 14 administrative dong, as follows:
In 1998 Ami 1-dong and Ami 2-dong were merged. In 2003 Seodaesin 2-dong and Seodaesin 1-dong were merged.
The district contains the island Dudo.[2]
The area is represented in the National Assembly by the West District and East District Busan (South Korean Legislature Constituency)
Changhai, China