2012 World Junior Championships in Athletics – Men's long jump

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.

Records
, the existing world junior and championship records were as follows.

Qualification
Qualification: Standard 7.70 m (Q) or at least best 12 qualified (q)

Participation
According to an unofficial count, 27 athletes from 20 countries participated in the event. • 🇦🇱 albania (1)

• 🇦🇲 armenia (1)

• 🇦🇹 austria (1)

• 🇧🇷 brazil (2)

• 🇨🇳 china (2)

• 🇨🇿 czech republic (1)

• undefined (2)

• 🇫🇷 france (2)

• 🇩🇪 germany (1)

• 🇬🇭 ghana (1)

• 🇮🇳 india (1)

• 🇯🇵 japan (2)

• undefined (1)

• 🇷🇺 russia (1)

• undefined (2)

• 🇪🇸 spain (1)

• 🇸🇪 sweden (1)

• 🇹🇷 turkey (1)

• undefined (1)

• 🇺🇸 united states (2)