The Delaware Oaks Stakes is an American Thoroughbred horse race run annually in mid July at Delaware Park Racetrack in Wilmington, Delaware.

Part of the Del Cap Festival Weekend that features other races over the two days including the Delaware Handicap, the Oaks is open to three-year-old fillies willing to race one and one-sixteenth miles on the dirt.

Currently, the Grade II race offers a purse of $250,000.

United States Hall of Fame fillies Gallorette (1945) and Dark Mirage (1968) have won this race as did the Canadian Horse Racing Hall of Fame inductee, Lauries Dancer. There was no race held in 1943 and from 1983 through 1995.