Robert Scott "Bob" Christiansen (born May 8, 1949) is a former professional American football defensive tackle in the National Football League (NFL). He played for the Buffalo Bills in 1972. For the 1971 season playing for the UCLA Bruins, he was named to the All-Conference First-team. He played for Reseda High School. References 1949 births Living people Sportspeople from Marshalltown, Iowa Players of American football from Iowa American football defensive tackles UCLA Bruins football players Buffalo Bills players