The men's long jump at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 11 July.
2012 World Junior Championships in Athletics – Men's long jump Wikipedia
Prior to the competition, the existing world junior and championship records were as follows.
Qualification: Standard 7.70 m (Q) or at least best 12 qualified (q)
According to an unofficial count, 27 athletes from 20 countries participated in the event.