Social Democratic Labour Party

Social Democratic Labour Party may refer to:


 * Estonian Social Democratic Labour Party, merged into the Estonian United Left Party
 * Social Democratic Labour Party of Lithuania, LDDP
 * Social Democratic Workers' Party (Netherlands)
 * Social Democratic and Labour Party, Northern Ireland
 * Russian Social Democratic Labour Party
 * Social Democratic Labour Party of Trinidad and Tobago
 * Swedish Social Democratic Party, (Swedish: Sveriges socialdemokratiska arbetareparti, SAP; literally, "Social Democratic Labour Party of Sweden")