Somerset West is a town in the Western Cape, South Africa. Organisationally and administratively it is included in the City of Cape Town metropolitan municipality Eastern Suburbs zone . The vehicle registration code for Somerset West is CFM and the post code is 7130 for street addresses, and 7129 for post office boxes.

Sir Lowry's Pass is a mountain pass on the N2 national road in the Western Cape province of South Africa. It crosses the Hottentots Holland Mountains between Somerset West and the Elgin valley, on the main route between Cape Town and the Garden Route. A railway line also crosses the mountain range near this point.