RMS Lady Hawkins was a steam turbine ocean liner. She was one of a class of five sister ships popularly known as "Lady Boats" that Cammell Laird of Birkenhead, England built in 1928 and 1929 for the Canadian National Steamship Company. The five vessels were Royal Mail Ships that CN operated from Halifax, Nova Scotia and the Caribbean via Bermuda. In 1942 the German submarine U-66 sank Lady Hawkins in the North Atlantic, killing 251 of the 322 people aboard.