Jari Mantila (born 14 July 1971 in Kotka) is a Finnishnordic combined athlete who competed from 1992 to 2003. He won a gold medal in the 4 x 5 km team event at the 2002 Winter Olympics and a silver medal at the 1998 Winter Olympics. Mantila also won five medals at the FIS Nordic World Ski Championships with one gold (4 x 5 km team: 1999), two silvers (15 km individual: 1995, 4 x 5 km team: 1997), and one bronze (4 x 5 km team: 2001).