The Women's under-23 time trial at the 2015 European Road Championships took place on 6 August.

The Championships were hosted by the Estonian city Tartu.

28 cyclists competed in the time trial.

The course had a total elevation of 53m, with a maximal inclination of 5.1% and a maximal slope downhill of 4.9%.

[1] The race was won by Mieke Kröger, who also won the time trial in 2014 in a time of 24' 57" with an average speed of 44.25 km/hour.