1971 European Athletics Championships – Men's 400 metres

The men's 400 metres at the 1971 European Athletics Championships was held in Helsinki, Finland, at Helsinki Olympic Stadium on 11, 12, and 13 August 1971.

Final
13 August

Semi-finals
12 August

Heats
11 August

Participation
According to an unofficial count, 26 athletes from 14 countries participated in the event.


 * 🇧🇪 belgium (1)
 * undefined (1)
 * undefined (1)
 * 🇫🇮 finland (1)
 * 🇫🇷 france (3)
 * 🇮🇪 ireland (1)
 * 🇮🇹 italy (2)
 * 🇳🇴 norway (1)
 * 🇵🇱 poland (3)
 * undefined (3)
 * 🇸🇪 sweden (2)
 * 🇬🇧 united kingdom (3)
 * undefined (3)
 * undefined (1)