| Age | 51 |
| Birthday | 24 February, 1974 |
| Birthplace | USA |
| Height | 6' 4" (193 cm) |
| Zodiac Sign | Pisces |
| Nationality | American |
| Occupation | Football (American) |
Bill Duff (born February 24, 1974) is a former National Football League, NFL Europe, and Arena Football League defensive tackle, and host of Human Weapon on the History Channel. He holds a brown belt in Tang Soo Do, a Korean martial art he refers to as "Korean Street Fighting".
