1990 World Junior Championships in Athletics – Women's 400 metres
The women's 400 metres event at the 1990 World Junior Championships in Athletics was held in Plovdiv, Bulgaria, at Deveti Septemvri Stadium on 8, 9 and 10 August.Medalists
Results
Final
10 August
| Rank | Name | Nationality | Time | Notes |
| Fatima Yusuf | NGR | 50.62 | |
| Charity Opara | NGR | 51.28 | |
| Manuela Derr | GDR | 51.95 | |
| 4 | Sue Andrews | AUS | 52.23 | |
| 5 | Julia Merino | ESP | 53.48 | |
| 6 | Nancy McLeón | CUB | 53.58 | |
| 7 | Marína Vasarmídou | GRE | 53.58 | |
| 8 | Anja Rücker | GDR | 54.16 | |
Semifinals
9 AugustSemifinal 1
Semifinal 2
Heats
8 AugustHeat 1
Heat 2
Heat 3
Heat 4
Participation
According to an unofficial count, 25 athletes from 17 countries participated in the event.
