Social Democratic Party of Yugoslavia should not be confused with Yugoslav Social-Democratic Party.
| Abbreviation: | SSJ |
| Country: | Yugoslavia |
| Social Democratic Party of Yugoslavia | |
| Native Name: | Socijaldemokratska stranka Jugoslavije |
| Leader: | Vitomir Korać |
| Headquarters: | Zagreb |
| Foundation: | 2 April 1920 |
| Dissolution: | 18 December 1921 |
| Merged: | Socialist Party of Yugoslavia |
| Ideology: | Socialism |
| Position: | Left-wing |
| Split: | Socialist Workers' Party of Yugoslavia (of Communists) |
| Colorcode: | red |
The Social Democratic Party of Yugoslavia was a political party in the Kingdom of Yugoslavia.
Party was founded during foundation of the Kingdom of Serbs, Croats and Slovenes around group of former Social Democratic Party of Croatia and Slavonia inside Socialist Workers' Party of Yugoslavia (of Communists) led by Vitomir Korać. Party dissolved on 18 December 1921, when it merged into the Socialist Party of Yugoslavia.
. Stevan K. Pavlowitch. Serbia: The History behind the Name. 2002. London. Hurst & Company. 9781850654773.