Vorster (pronounced for-ster) is a surname. Notable people with the surname include:
Balthazar Johannes Vorster (1915-1983), South African politician, Prime Minister and PresidentElinda Vorster (born 1965), South African sprinterEmil Vorster (1910-1976), German racing driver and entrepreneurHarold Vorster (born 1993), South African rugby playerJulius Vorster (1809-1876), German chemist and entrepreneur. One of the founders of Chemische Fabrik KalkLouis Vorster (1966-2012), South African-Namibian cricketerPankraz Vorster (1753-1829), Swiss bishop. The last abbot of the Abbey of Saint Gall