2000 World Junior Championships in Athletics – Men's 4 × 100 metres relay

The men's 4x100 metres relay event at the 2000 World Junior Championships in Athletics was held in Santiago, Chile, at Estadio Nacional Julio Martínez Prádanos on 22 October.

Final
22 October

Heats
22 October

Participation
According to an unofficial count, 79 athletes from 19 countries participated in the event. • 🇦🇺 australia (4)

• undefined (4)

• 🇫🇷 france (5)

• 🇩🇪 germany (4)

• 🇭🇺 hungary (4)

• 🇮🇱 israel (4)

• 🇮🇹 italy (4)

• 🇯🇲 jamaica (5)

• 🇯🇵 japan (4)

• 🇲🇽 mexico (4)

• 🇳🇿 new zealand (4)

• 🇵🇱 poland (4)

• undefined (4)

• 🇶🇦 qatar (4)

• 🇪🇸 spain (4)

• undefined (4)

• undefined (5)

• undefined (4)

• 🇺🇸 united states (4)