Kuhn is the son of Patti Duffy and John Kuhn. He participated in football, basketball, baseball, and track at Dover Area High School in York County, Pennsylvania. He was an offensive and defensive lineman with the Eagles, running for 2,242 yards and 20 touchdowns while also playing inside linebacker. Kuhn won a Super Bowl ring with the Steelers in Super Bowl XL. In Super Bowl XLV, he won his second ring with the Green Bay Packers against his previous team. He was selected to three Pro Bowls as a Packer. Kuhn is the son of Patti Duffy and John Kuhn.