2008 World Junior Championships in Athletics – Men's 400 metres hurdles

The men's 400 metres hurdles event at the 2008 World Junior Championships in Athletics was held in Bydgoszcz, Poland, at Zawisza Stadium on 9, 10 and 11 July.

Final
11 July

Semifinals
10 July

Heats
9 July

Participation
According to an unofficial count, 46 athletes from 31 countries participated in the event. • undefined (2)

• 🇦🇹 austria (1)

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• 🇨🇻 cape verde (1)

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• 🇨🇺 cuba (1)

• 🇫🇷 france (1)

• 🇩🇪 germany (2)

• 🇬🇺 guam (1)

• 🇭🇺 hungary (1)

• 🇮🇳 india (2)

• 🇮🇱 israel (1)

• 🇮🇹 italy (1)

• 🇯🇵 japan (2)

• 🇰🇪 kenya (2)

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• 🇱🇹 lithuania (2)

• 🇵🇱 poland (2)

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• 🇷🇺 russia (1)

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• 🇹🇳 tunisia (1)

• 🇺🇦 ukraine (1)

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• 🇺🇸 united states (2)

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• 🇺🇿 uzbekistan (1)

• 🇻🇪 venezuela (1)