The Arlington Oaks was an American Grade III Thoroughbred horse race run at Arlington Park racetrack near Chicago. Raced on dirt over a distance of 1 1/8 miles (9 Furlongs), the race is restricted to three-year-old fillies. It currently offers a purse of $150,000. Inaugurated in 1930, after the running of the 1932 edition, the race was not run again until 1980. There was no race in 1998 and 1999 and was run for the last time in 2014. In 1985, the race was hosted by the Hawthorne Race Course.