Walter Martin Corey (born May 9, 1938 in Latrobe, Pennsylvania) is a former professional American football linebacker. He played college football for the University of Miami. In 1960, Corey came to the American Football League's Dallas Texans as an undrafted linebacker. He went on to star for the Texans and the Kansas City Chiefs, with whom he was an AFL All-Star in 1963. Corey later held assistant coaching positions with several teams, including the Buffalo Bills. Walt was the defensive line coach in New Orleans during the Mike Ditka era 1997-1999.