Selborne Graving Dock, Naval dry dock in Simon's Town, South Africa

The Selborne Graving Dock is a dry dock inside the Naval Base Simon's Town, cut into the harbour shore as a walled basin that can be pumped dry to expose a ship's hull. Its walls were built with granite blocks from Norway and Portland cement from England. It is named for William Palmer, 2nd Earl of Selborne, High Commissioner for Southern Africa when it was built.

Construction began in 1906 and was completed in 1910 by a British building company. South African control came later as part of a political agreement that reshaped the base's administration.

The dock is named for William Palmer, 2nd Earl of Selborne, High Commissioner for Southern Africa when it was built. Its opening on 3 November 1910 by the Duke of Connaught was a ceremonial occasion for the naval yard. The name is still used for the dock within Naval Base Simon's Town.

The dock sits within an active naval base and is typically not directly accessible to visitors. It is best viewed from the public harbor area or from nearby viewpoints along the coastal road.

The dock's foundation stone was laid on 15 November 1906, and it was opened on 3 November 1910 by the Duke of Connaught. Its construction used Portland cement shipped from England and granite blocks brought from Norway.