The 2015 UCI Track Cycling World Championships were the World Championships for track cycling in 2015.

They took place in Saint-Quentin-en-Yvelines (part of the Paris Metropolitan Area) at the Vélodrome de Saint-Quentin-en-Yvelines from 18–22 February 2015.

385 cyclists from 38 countries were registered for the championships.

[5][6] The number of cyclists per nation is shown in parentheses.

36 TV stations broadcast the event.