HMS Sea Devil (P244)

HMS Sea Devil was an S-class submarine of the Royal Navy. She was launched late in the Second World War, on 30 January 1945. So far she has been the only ship of the Royal Navy to bear the name Sea Devil. Her first captain was Commander Denis Woolnough Mills, who was previously First Lieutenant of HMS Thunderbolt.

Her late commissioning meant that she did not see much action before the end of the Second World War. In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II. She had a long service career, and by the time she was sold for breaking up, she was the last of the S-class in service with the Royal Navy, though other S-classes remained in service with other navies.

She arrived at Newhaven in February 1966 for breaking up.