2012 World Junior Championships in Athletics – Men's 200 metres

The men's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.

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

Heats
Qualification: The first 2 of each heat (Q) and the 8 fastest times (q) qualified

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

Final
Wind: -0.4 m/s

Participation
According to an unofficial count, 62 athletes from 48 countries participated in the event. • 🇦🇮 anguilla (1)

• 🇦🇬 antigua and barbuda (2)

• 🇦🇺 australia (2)

• undefined (2)

• 🇧🇾 belarus (1)

• undefined (1)

• 🇧🇴 bolivia (1)

• 🇧🇷 brazil (1)

• 🇨🇦 canada (2)

• 🇨🇳 china (1)

• 🇨🇺 cuba (1)

• 🇨🇿 czech republic (2)

• 🇫🇷 france (2)

• 🇩🇪 germany (2)

• 🇬🇭 ghana (1)

• 🇬🇮 gibraltar (1)

• 🇬🇺 guam (1)

• 🇮🇪 ireland (1)

• 🇮🇱 israel (1)

• 🇮🇹 italy (2)

• 🇯🇲 jamaica (2)

• 🇯🇵 japan (2)

• 🇲🇰 macedonia (1)

• 🇲🇹 malta (1)

• undefined (1)

• 🇲🇽 mexico (2)

• 🇲🇦 morocco (1)

• 🇳🇿 new zealand (1)

• undefined (1)

• undefined (1)

• 🇵🇱 poland (1)

• undefined (1)

• undefined (1)

• 🇶🇦 qatar (1)

• undefined (1)

• undefined (1)

• 🇰🇷 south korea (1)

• 🇪🇸 spain (1)

• undefined (1)

• undefined (2)

• 🇹🇷 turkey (1)

• 🇹🇨 turks and caicos islands (1)

• 🇺🇦 ukraine (1)

• undefined (2)

• 🇺🇸 united states (2)

• undefined (1)

• undefined (1)

• undefined (1)