Gerald John Hillebrand (born March 28, 1940) is a former American football linebacker who played nine seasons in the National Football League (NFL) for the New York Giants, St. Louis Cardinals, and the Pittsburgh Steelers. He played college football and was drafted in the first round (13th overall) of the 1962 NFL Draft. Hillebrand was also selected in the second round of the 1962 AFL Draft by the Denver Broncos.