Two ships of the Royal Navy have been named HMS Hydrangea :
- HMS Hydrangea (1916) an Arabis-class sloop launched in 1916 and sold in 1920
- HMS Hydrangea (K39), a Flower-class corvette launched in 1940 and sold in 1947. She became the mercantile Hydralock and was wrecked in 1957
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.