The Brighton Derby was an American Thoroughbred horse race run annually by the Brighton Beach Racing Association at its Brighton Beach Race Course at Brighton Beach on Coney Island, New York. Open to three-year-olds, it was contested at a distance of one and one half miles (12 furlongs) on dirt. Run during the mid to latter part of July, it was the last of the racing season's thirteen Derby races. The Brighton Derby was first run at 1½ miles in 1901, then at 1¼ miles in 1902 and 1903 before reverting to the original distance.