| 23rd Chicago Marathon | |
|---|---|
| Venue | Chicago, United States |
| Dates | October 22 |
| Champions | |
| Men | Khalid Khannouchi (2:07:01) |
| Women | Catherine Ndereba (2:21:33) |
The 2000 Chicago Marathon was the 23rd running of the annual marathon race in Chicago, United States and was held on October 22. The elite men's race was won by Morocco's Khalid Khannouchi in a time of 2:07:01 hours and the women's race was won by Kenya's Catherine Ndereba in 2:21:33.