Three ships of the Royal Navy have borne the name HMS Crusader, after the participants in the Medieval Crusades:
- was a destroyer launched in 1909 and sold in 1920.
- was a C-class destroyer launched in 1931. She was transferred to the Royal Canadian Navy in 1938 and renamed . She was sunk in 1942.
- was a destroyer of another . She was launched in 1944, transferred to the Royal Canadian Navy in 1945 and sold in 1964.