Western Cape (Afrikaans: Wes-Kaap; Xhosa: iNtshona-Koloni) is one of the nine multi-member constituencies of the National Assembly of South Africa, the lower house of the Parliament of South Africa, the national legislature of South Africa.

The constituency currently elects 24 of the 400 members of the National Assembly using the closed party-list proportional representation electoral system.

[3] 200 of the 400 members of the National Assembly are elected by nine constituencies which correspond to the nine provinces of South Africa.

These members are elected under a system of closed party-list proportional representation,[4][5] using the largest remainder method with a Droop quota.

In the 2024 election a separate "regional" ballot paper was introduced for the provincial seats, which allows for the participation of independent candidates.