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

The women's discus throw at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 15 July.

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

Qualification
Qual. rule: qualification standard 53.00 m (Q) or at least best 12 qualified (q)

Participation
According to an unofficial count, 35 athletes from 25 countries participated in the event. • 🇦🇷 argentina (1)

• 🇦🇺 australia (2)

• 🇨🇦 canada (2)

• 🇨🇳 china (1)

• 🇨🇺 cuba (1)

• 🇪🇪 estonia (1)

• 🇩🇪 germany (2)

• 🇭🇺 hungary (1)

• 🇯🇲 jamaica (1)

• 🇱🇹 lithuania (1)

• 🇳🇦 namibia (1)

• 🇳🇿 new zealand (2)

• undefined (1)

• undefined (1)

• undefined (1)

• 🇷🇺 russia (1)

• undefined (2)

• 🇪🇸 spain (2)

• 🇸🇪 sweden (2)

• 🇹🇭 thailand (1)

• 🇹🇷 turkey (2)

• 🇺🇦 ukraine (2)

• undefined (1)

• 🇺🇸 united states (2)

• 🇻🇪 venezuela (1)