| Championship Event Series race | |
 | |
| Location | Del Mar Racetrack |
|---|---|
| Race type | Thoroughbred |
| Website | www |
| Race information | |
| Distance | See individual races |
| Surface | Turf, Dirt |
| Purse | Varies by Race; Between $1 million – $6 million |
The 2017 Breeders' Cup World Championships was the 34th edition of the premier event of the North American thoroughbred horse racing year. The 13 races, all of which were Grade I, took place on November 3 and 4 at Del Mar Racetrack in Del Mar, California and were telecast by NBC and NBC Sports. The Breeders' Cup is generally regarded as the end of the North America racing season, although a few Grade I events take place in later November and December.
The highlight of the event was Gun Runner's victory in the Classic, likely wrapping up Horse of the Year honors. Forever Unbridled, Roy H and World Approval likely wrapped up divisional Eclipse Awards with victories in the Distaff, Sprint and Mile respectively. The event featured many longshot winners, including Bar of Gold at 66–1, the second largest payout in the event's history.