spelling: Yulia Nestsiarenka, née Bartsevich (Belarusian: Юлія Несцярэнка, Julija Nieściarenka; Russian: Юлия Нестеренко, Yuliya Nesterenko; born 15 June 1979) is a Belarusian sprinter who was the Olympic 100 meters champion in 2004.

At the 2005 World Championships in Athletics in Helsinki she reached the final in the 100 metres, though came only 8th (11.13 seconds).

She won a bronze medal in another event, the 4 × 100 metres relay, together with her compatriots Natallia Solohub, Alena Neumiarzhitskaya and Aksana Drahun.

At the 2006 European Athletics Championships in Gothenburg she was 6th in the 100m final and won a bronze medal in the 4 × 100 m relay.

There she improved down to 11.14 seconds, but finished 4th, normally causing elimination, however hers was the fastest losing time and enough to qualify for the semifinals.