Joseph Charles Ehrmann (born March 29, 1949) is a former National Football League (NFL) defensive lineman, originally drafted as the 10th pick in the first round of the 1973 NFL Draft out of Syracuse University to the Baltimore Colts. Ehrmann is currently the President of the InSideOut Initiative. Ehrmann played with Baltimore for eight years as a member of the "Sack Pack," and finished his NFL career with the Detroit Lions as part of their vaunted Silver Rush defensive line in the early 1980s. He was an NFL defensive tackle from 1973 through 1982. He then played in the USFL for the Chicago Blitz, Arizona Wranglers and Orlando Renegades.