SS Cyclops was a British cargo steamship of Alfred Holt and Company (Blue Funnel Line). She was built in Glasgow in 1906, served in both the First and Second World Wars and survived two German submarine attacks in 1917. A German submarine sank her in January 1942 off the coast of Nova Scotia, killing 87 of the men aboard her. This was the first attack of the Kriegsmarine's Unternehmen Paukenschlag ("Operation Drumbeat") to destroy Allied merchant shipping in the Western Atlantic.