2012 World Junior Championships in Athletics – Men's discus throw

The men's discus throw at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.

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

Qualification
Qualification: Standard 59.40 m (Q) or at least best 12 qualified (q)

Participation
According to an unofficial count, 28 athletes from 22 countries participated in the event. • 🇦🇷 argentina (1)

• 🇦🇺 australia (1)

• 🇧🇷 brazil (1)

• 🇨🇦 canada (1)

• 🇨🇴 colombia (1)

• 🇨🇿 czech republic (1)

• undefined (2)

• 🇩🇪 germany (2)

• 🇭🇺 hungary (1)

• 🇮🇳 india (1)

• undefined (1)

• 🇮🇹 italy (2)

• 🇯🇲 jamaica (1)

• 🇵🇱 poland (2)

• 🇷🇺 russia (1)

• 🇷🇸 serbia (1)

• undefined (1)

• undefined (2)

• 🇸🇪 sweden (1)

• 🇹🇷 turkey (1)

• undefined (1)

• 🇺🇸 united states (2)