The 2010 World Junior Figure Skating Championships was an international competition in the 2009–10 season.

Commonly called "World Juniors" and "Junior Worlds", the annual event awards medals in the disciplines men's singles, ladies' singles, pair skating, and ice dancing.

The term "Junior" in ISU competition refers to age, not skill level.

Skaters may remain age-eligible for Junior Worlds even after competing nationally and internationally at the senior level.

Based on the results of the 2009 World Junior Championships, the ISU allowed each country one to three entries per discipline.