Pertti Teurajärvi (born 20 February 1951 in Kolari) is a Finnish former cross-country skier who competed in the late 1970s and early 1980s. He won two medals in the 4 x 10 km at the Winter Olympics with a gold in 1976 and a bronze in 1980.
Teurajärvi also won a silver medal in the 4 x 10 km relay at the 1978 FIS Nordic World Ski Championships in Lahti. His best individual event was 4th in a World Cup event in 1982 in West Germany.
Teurajärvi tested positive for prolintane at the 1982 Finnish Skiing Championships and was subsequently handed an one-year ban from sport for the anti-doping rule violation.