The Ribblesdale Stakes is a Group 2 flat horse race in Great Britain open to three-year-old fillies.
It is run at Ascot over a distance of 1 mile 3 furlongs and 211 yards (2,406 metres), and it is scheduled to take place each year in June.
The event is named in honour of the 4th Baron Ribblesdale, who served as the Master of the Buckhounds from 1892 to 1895.
The race was abandoned throughout World War II, and after it returned its distance was extended to 1½ miles.
The Ribblesdale Stakes sometimes features fillies which ran previously in the Epsom Oaks.