| Native Name: | 사회민주당 |
| Native Name Lang: | ko |
| Abbreviation: | SDP |
| Leader: | Han Chang-min |
| Leader2 Title: | Floor Leader |
| Leader2 Name: | Han Chang-min |
| Secretary General: | Kim Bo-kyung |
| Founded: | 15 February 2024 |
| Split: | Justice Party |
| Position: | Centre-left |
| National: | New Progressive Alliance (2024) |
| Colours: | Orange |
| Seats1 Title: | National Assembly |
| Country: | South Korea |
The Social Democratic Party is a South Korean political party that was registered on 15 February 2024.[1] It was founded by members who left the Justice Party.[2]
The party participated in the 2024 South Korean legislative election as part of the BIP-led New Progressive Alliance, which in turn participated as part of the DPK-led Democratic Alliance of Korea. Han Chang-min, a representative of the SDP, was elected to the National Assembly by proportional representation.[3]