The Duchess of Cambridge Stakes is a Group 2 flat horse race in Great Britain open to two-year-old fillies.
The event was established in 1947 as the Cherry Hinton Stakes, and the inaugural running was won by Great Fun.
The present system of race grading was introduced in 1971, and for a period the Cherry Hinton Stakes was classed at Group 3 level.
The Duchess of Cambridge Stakes is currently held on the second day of Newmarket's three-day July Festival meeting.
The equivalent race for male horses is the July Stakes.