1990 World Junior Championships in Athletics – Women's 400 metres hurdles

The women's 400 metres hurdles event at the 1990 World Junior Championships in Athletics was held in Plovdiv, Bulgaria, at Deveti Septemvri Stadium on 8, 9 and 10 August.

Final
10 August

Semifinals
9 August

Heats
8 August

Participation
According to an unofficial count, 28 athletes from 20 countries participated in the event. • 🇦🇺 australia (1)

• 🇧🇬 bulgaria (1)

• 🇨🇦 canada (1)

• 🇨🇺 cuba (1)

• 🇨🇾 cyprus (1)

• undefined (1)

• undefined (1)

• undefined (1)

• 🇫🇷 france (2)

• 🇮🇪 ireland (2)

• 🇮🇹 italy (2)

• 🇯🇲 jamaica (1)

• 🇳🇿 new zealand (2)

• undefined (1)

• 🇳🇴 norway (1)

• undefined (2)

• 🇷🇴 romania (1)

• undefined (2)

• 🇺🇸 united states (2)

• undefined (2)