John Harry Larsen (27 August 1913 – 5 August 1989) was a Norwegian rifle shooter who competed in the 100 metre running deer event at the 1952 and 1956 Olympics. He won a gold medal in 1952 and placed eighth in 1956. At the 1952 Olympics he used a custom M95M Trombone Conversion in 6.5×55mm of which there were only 3 made. Larsen won seven gold medals at the ISSF World Shooting Championships in 1949–1954. His son, John H. Larsen, Jr., also became an Olympic rifle shooter.