2012 World Junior Championships in Athletics – Men's 100 metres

The men's 100 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 11 July.

Qualification: The first 2 of each heat (Q) and the 6 fastest times (q) qualified

Qualification: The first 2 of each heat (Q) and the 2 fastest times (q) qualified

Wind: +0.1 m/s

According to an unofficial count, 71 athletes from 55 countries participated in the event.

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