The women's 100 metres hurdles event at the 2003 European Athletics U23 Championships was held in Bydgoszcz, Poland, at Zawisza Stadion on 18 and 20 July.
2003 European Athletics U23 Championships – Women's 100 metres hurdles Wikipedia
Qualified: first 4 in each to the Final
Qualified: first 3 in each heat and 4 best to the Final
According to an unofficial count, 27 athletes from 16 countries participated in the event.