Five ships of the Royal Navy have been called HMS Alderney, named after the Island of Alderney.
was an 8-gun bomb vessel launched in 1735 and hulked in 1741. was a 24-gun sixth rate, originally built as HMS Squirrel but renamed in 1742 and launched in 1743. She was sold in 1749. was a 12-gun sloop launched in 1757 and sold in 1783. She may have become the whaler , taken by the Spanish in 1797. was an launched in 1945 and broken up in 1972. was an , launched in 1979 and decommissioned in 2001. She was sold to the Bangladesh Navy in 2002 and renamed .