1998 World Junior Championships in Athletics – Men's 400 metres

The men's 400 metres event at the 1998 World Junior Championships in Athletics was held in Annecy, France, at Parc des Sports on 28, 29 and 31 July.

Final
31 July

Semifinals
29 July

Heats
28 July

Participation
According to an unofficial count, 46 athletes from 37 countries participated in the event. • undefined (2)

• 🇦🇷 argentina (2)

• 🇦🇺 australia (2)

• undefined (1)

• 🇧🇬 bulgaria (1)

• 🇨🇦 canada (1)

• 🇨🇳 china (1)

• 🇨🇰 cook islands (1)

• 🇪🇬 egypt (1)

• 🇩🇪 germany (2)

• 🇮🇪 ireland (2)

• 🇮🇹 italy (1)

• 🇯🇲 jamaica (1)

• 🇯🇵 japan (2)

• 🇰🇪 kenya (1)

• undefined (1)

• 🇱🇷 liberia (1)

• 🇱🇺 luxembourg (1)

• 🇲🇹 malta (1)

• undefined (1)

• 🇲🇦 morocco (1)

• undefined (1)

• 🇵🇬 papua new guinea (1)

• 🇵🇱 poland (2)

• undefined (1)

• undefined (1)

• 🇸🇳 senegal (1)

• undefined (1)

• undefined (1)

• 🇰🇷 south korea (1)

• undefined (1)

• Tahiti (1)

• undefined (1)

• 🇹🇳 tunisia (1)

• undefined (2)

• 🇺🇸 united states (2)

• 🇻🇪 venezuela (1)