 In the 2018 Winter Olympics in Pyeongchang, Niskanen became individual Olympic champion on the men's 50 kilometre classical.In January 2019, Niskanen was awarded his third "Finnish Sports Personality of the Year" for the year 2018, the first since Marjo Matikainen in 1987 to win the award two consecutive years; the first male since Kaarlo Kangasniemi in 1969.At the 2019 World Championships in Seefeld in Tirol, Austria, Niskanen won a bronze medal in the 15 km classic event.