The 2020 Winter Youth Olympic Games, officially known as the III Winter Youth Olympic Games and commonly known as Lausanne 2020, were the third edition of the Winter Youth Olympics; a major international multi-sport event and cultural festival for teenagers that was held in Lausanne, Switzerland, the home of the International Olympic Committee, between 9 and 22 January 2020.

The Youth Olympic Games (YOG) is an international multi-sport event for athletes between 15 and 18 years old, organized by the International Olympic Committee. The games are held every four years in staggered summer and winter events consistent with the current Olympic Games format, though in reverse order with the Olympic Winter Games held in leap years instead of the Summer Olympic Games. The first summer version was held in Singapore from 14 to 26 August 2010 while the first winter version was held in Innsbruck, Austria from 13 to 22 January 2012.