The following ships are named Queen Mary:
, a battlecruiser of the Royal Navy that entered service in 1913 and was sunk at the Battle of Jutland in 1916 , a Clyde steamer in service 1933–1977, under restoration on the River Clyde, Scotland , a Cunard Line ocean liner in service 1936–1967, now retired as a hotel in Long Beach, California, United States , a Cunard Line ocean liner that entered service in 2004