Simon's Town, sometimes spelled Simonstown, is a town in the Western Cape, South Africa and is home to Naval Base Simon's Town, the South African Navy's largest base. It is located on the shores of Simon's Bay in False Bay, on the eastern side of the Cape Peninsula. For more than two centuries it has been a naval base and harbour. The town is named after Simon van der Stel, an early governor of the Cape Colony.

Naval Base Simon's Town is the South African Navy's largest naval base, situated at Simon's Town, near Cape Town. The base provides support functions to Fleet Command.