The Separate Representation of Voters Amendment Act, 1968 (Act No. 50 of 1968) was an act of the Parliament of South Africa enacted under the government of B. J. Vorster, which repealed the Separate Representation of Voters Act, 1951. This had the effect of removing the four members of the House of Assembly who were elected by Coloured voters in the Cape Province as well as abolishing the additional nominated seat in the Senate for the "non-European" (i.e. Coloured, as black Africans were explicitly excluded from the definition under section 1 (ii) of the 1951 act) population of the Cape Province, that had only been filled once in 1957 and had been vacant since 1962. Subsequently the House of Assembly would be elected solely by white voters.