The 2016 UCI Junior Track Cycling World Championships were the 42nd annual Junior World Championships for track cycling, held at the World Cycling Centre in Aigle, Switzerland from 20 to 24 July.
The Championships had ten events for men (sprint, points race, individual pursuit, team pursuit, 1 kilometre time trial, team sprint, keirin, madison, scratch race, omnium) and nine for women (sprint, individual pursuit, 500 metre time trial, points race, keirin, scratch race, team sprint, team pursuit, omnium), and one demonstration event for women (madison).