This is a list of the champions of the International Fight League.
Weight limit: Unlimited
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Roy Nelson | December 29, 2007 | Uncasville, Connecticut, United States | ||||||
Weight limit: 2101NaN1
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Vladimir Matyushenko | November 3, 2007 | Hoffman Estates, Illinois, United States | ||||||
Weight limit: 1851NaN1
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Matt Horwich | December 29, 2007 | Uncasville, Connecticut, United States | ||||||
| 2 | Ryan McGivern | February 29, 2008 | Las Vegas, Nevada, United States | ||||||
| 3 | Dan Miller | May 16, 2008 | Uncasville, Connecticut, United States |
Weight limit: 1701NaN1
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Jay Hieron | December 29, 2007 | Uncasville, Connecticut, United States | ||||||
Weight limit: 1551NaN1
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ryan Schultz | December 29, 2007 | Uncasville, Connecticut, United States | ||||||
Weight limit: 1401NaN1
| width=1% | No. | width=19% | Name | width=15% | Date | width=20% | Location | width=45% | Defenses |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Wagnney Fabiano | December 29, 2007 | Uncasville, Connecticut, United States | ||||||