The Congress of South African Trade Unions is a trade union federation in South Africa. It was founded in 1985 and is the largest of the country's three main trade union federations, with 21 affiliated trade unions.

The United Democratic Front (UDF) was a South African popular front that existed from 1983 to 1991. The UDF comprised more than 400 public organizations including trade unions, students' unions, women's and parachurch organizations. The UDF's goal was to establish a "non-racial, united South Africa in which segregation is abolished and in which society is freed from institutional and systematic racism." Its slogan was "UDF Unites, Apartheid Divides." The Front was established in 1983 to oppose the introduction of the Tricameral Parliament by the white-dominated National Party government, and dissolved in 1991 during the early stages of the transition to democracy.