| Discontinued Grade 3 stakes race | |
| Location | Arlington Park Arlington Heights, Illinois, United States |
|---|---|
| Inaugurated | 1980 |
| Race type | Thoroughbred – Flat racing |
| Website | www.arlingtonpark.com |
| Race information | |
| Distance | 1 mile (8 furlongs) |
| Surface | Turf |
| Track | Left-handed |
| Qualification | Three-year-olds & up |
| Weight | Assigned |
| Purse | US$100,000 |
The Sea o'Erin Stakes was American Thoroughbred horse race held annually in early September at Arlington Park racetrack in Arlington Heights, Illinois. A Grade III event open to horses age three and older, it was contested on turf over a distance of one mile (8 furlongs).
Inaugurated in 1980 as the Sea o'Erin Handicap, the race was run at various distances:
Due to heavy rains, the 1996 race was switched from the turf course to the main dirt track.
There was no race run in 1986, 1988, 1995, and 1997–2000.