| 20th Chicago Marathon | |
|---|---|
| Venue | Chicago, United States |
| Dates | October 19 |
| Champions | |
| Men | Khalid Khannouchi (2:07:10) |
| Women | Marian Sutton (2:29:03) |
The 1997 Chicago Marathon was the 20th running of the annual marathon race in Chicago, United States and was held on October 19. The elite men's race was won by Morocco's Khalid Khannouchi in a time of 2:07:10 hours and the women's race was won by Great Britain's Marian Sutton in 2:29:03.