Pekka Johannes Päivärinta (born 4 May 1949 in Aura) is a Finnish former long-distance runner. He won men's senior race in the first World Championships of cross-country running in 1973. He competed in 1972 Olympics at 3000-meter steeplechase finishing 8th. In 1976 Olympics he competed in 5000 meters and finished 13th. In 1975 he broke world record in 25000 meters running by his result 1:14:16,8. The record was broken by Bill Rodgers in 1979.