David Diehl, American football player and sportscaster
David Michael Diehl (; born September 15, 1980) is a former American football offensive lineman who played his entire career with the New York Giants of the National Football League (NFL). He was the Giants starting left tackle on two Super Bowl championship teams, beating the New England Patriots in both games. He played college football for the University of Illinois. The Giants selected him in the fifth round of the 2003 NFL Draft.