| Jung–Seongdong B | |
| Type: | Single-member |
| Constituency Link: | Jung–Seongdong B |
| Parl Name: | National Assembly |
| District Label: | District(s) |
| District: | Jung District Seongdong District (part) |
| Region Label: | Region |
| Region: | Seoul |
| Electorate: | 177,422 |
| Year: | 2016 |
| Members Label: | Member of Parliament |
| Members: | Park Sung-joon |
| Seats: | 1 |
| Elects Howmany: | 1 |
| Party Label: | Party |
| Party: | Democratic Party of Korea |
| Local Council Label: | Council constituency |
| Local Council: | Jung 1st district Jung 2nd district Seongdong 1st district |
| Previous: | Jung Seongdong A (part) |
Jung–Seongdong B (Korean: 중구·성동구 을) is a constituency of the National Assembly of South Korea. The constituency consists of Jung District and part of Seongdong District. As of 2024, 177,422 eligible voters were registered in the constituency.
| Election | Member | Party | Dates | Notes | ||
|---|---|---|---|---|---|---|
| bgcolor= | 2016 | Ji Sang-wook | Saenuri | 2016–2020 | Spokesperson of the Saenuri Party (2016)[1] | |
| bgcolor= | 2020 | Park Sung-joon | Democratic | 2020–present | ||
| bgcolor= | 2024 | |||||