Mikko Lehtonen (born 16 January 1994) is a Finnish professional ice hockey defenceman currently playing for the Columbus Blue Jackets of the National Hockey League (NHL). After leading the KHL in points among defensemen with Jokerit of the Kontinental Hockey League (KHL), Lehtonen announced he would continue his career in the NHL, and would sign a one-year entry level contract with the Maple Leafs. On March 12, he was traded to the Columbus Blue Jackets.