Lauri Ilmari Mononen (22 March 1950 – 5 August 2018) was a Finnish professional ice hockey winger. While playing for Phoenix Roadrunners in the World Hockey Association he was one of the first Finns to play professional hockey in North America. He played for a total of two seasons in WHA. He also won the Finnish Championship once and the Swiss Championship once. He was twice chosen as best forward in the Finnish League and selected to All Star five three times (1969, 1972, 1975). He also competed in the men's tournament at the 1972 Winter Olympics.
His number 15 has been frozen by his former club, Jokipojat. He was inducted into the Finnish Hockey Hall of Fame as number 75.