1974 European Athletics Championships – Men's 400 metres

The men's 400 metres at the 1974 European Athletics Championships was held in Rome, Italy, at Stadio Olimpico on 2, 3, and 4 September 1974.

The winning margin was 0.63 seconds which as of 2024 remains the only time the men's 400 metres has been won by more than 0.6 seconds at these championships since the introduction of fully automatic timing, although the winning margin in the 1938 European Athletics Championships was a hand-timed 0.8 seconds.

Final
4 September

Semi-finals
3 September

Heats
2 September

Participation
According to an unofficial count, 20 athletes from 11 countries participated in the event.


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