The Workers Party of South Africa (WPSA) was the first Trotskyist organisation in South Africa to have a national base. It published a regular newspaper, Spark.
The party was founded in 1935 by the majority of the Cape Town-based Lenin Club and the Johannesburg-based Bolshevik-Leninist League of South Africa. Founding members included Isaac Bangani Tabata, Dora Taylor, Ralph Lee and Isaac Blank (later known as Ted Grant). Its first initiative was to intervene in the All African Convention, called to oppose the Hertzog Bills, which aimed to complete the implementation of apartheid in the nation. The group opposed both the system of apartheid and calls for black nationalism.
In 1939, facing increasing repression, the group went underground and began working solely through the NEUM. As a result, when the government banned groups based on the teachings of Marx, Lenin and Trotsky in 1950, its activities were unaffected. Some sources claim that the WPSA ceased to exist in 1953, although due to its secretive nature, this is difficult to confirm.