2012 World Junior Championships in Athletics – Men's decathlon

The men's decathlon at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 11 July.

Participation
According to an unofficial count, 23 athletes from 16 countries participated in the event. • 🇦🇺 australia (2)

• 🇧🇾 belarus (1)

• 🇧🇪 belgium (1)

• 🇧🇷 brazil (1)

• 🇨🇦 canada (1)

• 🇨🇺 cuba (2)

• 🇨🇿 czech republic (1)

• 🇪🇪 estonia (2)

• 🇫🇮 finland (1)

• 🇫🇷 france (1)

• 🇩🇪 germany (2)

• undefined (2)

• 🇷🇸 serbia (1)

• 🇪🇸 spain (1)

• undefined (2)

• 🇺🇸 united states (2)