Japan competed at the 2020 Winter Youth Olympics in Lausanne, Switzerland from 9 to 22 January 2020.
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Japan qualified a mixed team of four athletes.
Two Japanese figure skaters achieved quota places for Japan based on the results of the 2019 World Junior Figure Skating Championships.
Three Japanese skaters achieved quota places for Japan based on the results of the 2019 World Junior Short Track Speed Skating Championships.
Four Japanese skaters achieved quota places for Japan based on the results of the 2019 World Junior Speed Skating Championships.