The Dominion Day Stakes is a Thoroughbred horse race run annually in July at Woodbine Racetrack in Toronto, Ontario, Canada.
A Grade III event currently offering a purse of CAD$150,000 +, it is open to horses aged three years and up.
The race celebrates Dominion Day, the birth of the Canadian Confederation on July 1, 1867.
Ace Marine, one of Canada's greatest runners, and its 1955 Horse of the Year, won this race in 1956.
In 1984, the 1984 Canadian Champion Three-Year-Old colt, Key to the Moon, won the Dominion, and in 1990, Charlie Barley (by the U.S.