Finnish long-distance runner, winner of three Olympic gold medals and two-time world-record holder for the 10,000-metre run.

Ritola ran somewhat in the shadow of his great countryman Paavo Nurmi. Ritola lived and trained in the United States but competed internationally for Finland. At the 1924 Olympic Games in Paris, he won gold medals for the 10,000-metre race and the 3,000-metre steeplechase, later in that year setting a world record (30 min 23.2 sec) for the 10,000 metres for the second time. Nurmi had preceded him as record holder and followed him later in 1924. At the 1928 Olympic Games in Amsterdam, in which the Finnish runners won 10 gold medals, Ritola won the gold medal in the 5,000-metre race and the silver medal in the 10,000, beating Nurmi in the former and being beaten by him in the latter. Ritola ran frequently in the United States between the Olympics with great success. He retired from running after 1928.