The United Federation of Workers' Unions of Yugoslavia (Serbo-Croatian: Ujedinjeni radnički sindikalni savez Jugoslavije, URSSJ) was a trade union federation in Yugoslavia.
The federation was established in 1922 as the Yugoslav General Confederation of Labour, and affiliated with the Social Democratic Party of Yugoslavia.
Despite this affiliation, it avoided political activity, focusing on economic matters affecting workers, and also avoided taking industrial action.
From 1934, it became more militant, as the Communist Party of Yugoslavia became increasingly active in it.
After World War II, it was replaced by the Confederation of Trade Unions of Yugoslavia.