1979 European Athletics Indoor Championships – Men's 400 metres

The men's 400 metres event at the 1979 European Athletics Indoor Championships was held on 24 and 25 February in Vienna.

Heats
First 2 from each heat (Q) and the next 2 fastest (q) qualified for the semifinals.

Semifinals
The winner of each heat (Q) and the next 1 fastest (q) qualified for the final.