The Thiepval Memorial to the Missing of the Somme, near Thiepval, in the Somme department of France, commemorates by name over 72,000 British and South African servicemen who died in the Battles of the Somme and have no known grave.

The Australian National Memorial, located at Villers-Bretonneux, in the Somme department of France, is the main memorial to Australian military personnel killed on the Western Front during the First World War, especially those who have no known grave.