The Nassau Stakes is a Group 1 flat horse race in Great Britain open to fillies and mares aged three years or older.
It is run at Goodwood over a distance of 1 mile, 1 furlong and 197 yards (1,991 metres), and it is scheduled to take place each year in late July or early August.
The title of the event acknowledges the friendship between the 5th Duke of Richmond, a former owner of Goodwood Racecourse, and the House of Orange-Nassau.
The Nassau Stakes was opened to fillies and mares aged four or older in 1975.
The race is currently held on the third day of the five-day Glorious Goodwood meeting.