Slovenian Democratic Union
| Slovenian Democratic Union Slovenska Demokratična Zveza | |
|---|---|
| President | Dimitrji Rupel | 
| Founded | January 11, 1989. | 
| Succeeded by | Democratic Party of Slovenia, National Democratic Party | 
The Slovenian Democratic Union (Slovene: Slovenska demokratična zveza, acronym SDZ) was a Slovene liberal political party, active between 1989 and 1991, during the democratization and the secession of the Republic of Slovenia from Yugoslavia.