Robert Earl Petrich (born March 15, 1941) is an American former professional football player who was a defensive end in the American Football League (AFL).
Petrich played college football for West Texas State Buffaloes (now West Texas A&M), and then played four seasons for the San Diego Chargers (1963âÂÂ1966) and the Buffalo Bills (1967). He also played one season for the Toronto Argonauts to end his career.