Four ships of the Royal Navy have borne the name HMS Nonpareil, from the French meaning 'without equal':

• HMS Nonpareil (1584) was a 56-gun galleon, launched in 1556 as the 44-gun HMS Philip and Mary. She was rebuilt in 1584 and renamed Nonpareil. She was again rebuilt in 1603 and renamed Nonsuch. She was sold in 1645.
• HMS Nonpareil (1808) was a schooner launched at Baltimore in 1801 that the Royal Navy captured in 1808 and purchased. She was damaged in a storm in 1812 and sold the following year.
• HMS Nonpareil (1916) was an Admiralty M-class destroyer launched in 1916 and sold in 1921.
• HMS Nonpareil (G16) was an N-class destroyer launched in 1941. She was transferred to the Royal Netherlands Navy in 1942 and renamed Tjerk Hiddes. She was transferred to Indonesia in 1951 and renamed Gadjah Mada. She was broken up in 1961.
• HMS Nonpareil was to have been an Algerine-class minesweeper. She was laid down in 1944 but cancelled later that year.

This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.