1998 European Athletics Championships – Men's 400 metres

The men's 400 metres at the 1998 European Athletics Championships was held at the Népstadion on 19, 20 and 21 August.

Qualification: First 3 in each heat (Q) and the next 4 fastest (q) advance to the Semifinals.

Qualification: First 4 in each heat (Q) advance to the Final.