Juho Pekka Niemi (born Yliniemi, 15 November 1909 – 21 December 1993) was a Finnish cross-country skier who competed at the 1936 Winter Olympics.
He won a bronze medal in the 18 km event and placed eighth over 50 km.
His biggest success came at the 1937 FIS Nordic World Ski Championships, where he won a complete set of medals: a gold in the 50 km, a silver in the 4×10 km relay and a bronze in the 18 km.
He also won the 50 km race at the 1938 Holmenkollen ski festival.Niemi won only one medal at the national championships, a silver in the 50 km in 1935.
He retired soon after the 1939 World Championships, where he placed fifth over 50 km and sixth over 18 km.