'Marigold' was a British unsuccessful special forces operation by the Special Air Service and the Special Boat Section to make a landing on the east coast of Sardinia and then seize and extract Axis prisoners for interrogation (30 May/1 June 1943).

During the night a submarine landed eight SAS and three SBS men, who were spotted by the local forces and engaged, forcing the party into a rapid evacuation in its dinghies to the submarine.