HMS Spiraea was a of the British Royal Navy. Named for a genus of shrub, Spiraea served in the Second World War as an escort.
The corvette was launched on 31 October 1940 at Glasgow, Scotland and entered nominal service on 27 February 1941. In 1943, she recovered the survivors of two separate sinkings (the merchant vessels Oporto and Fort Howe), of which the Fort Howe effort was in conjunction with .
Spiraea was sold to Greece in August 1945 and became the Thessaloniki.