1977 European Athletics Indoor Championships – Men's 400 metres

The men's 400 metres event at the 1977 European Athletics Indoor Championships was held on 12 and 13 March in San Sebastián.

Medalists

Gold	Silver	Bronze
Alfons Brijdenbach Belgium	Francis Demarthon France	Marian Gęsicki Poland

Results

Heats

First 2 from each heat (Q) and the next 6 fastest (q) qualified for the semifinals.

Rank	Heat	Name	Nationality	Time	Notes
1	1	Alfons Brijdenbach	Belgium	48.18	Q
2	3	Francis Demarthon	France	48.24	Q
3	3	Eddy De Leeuw	Belgium	48.29	Q
4	2	Hector Llatser	France	48.30	Q
5	1	Glen Cohen	Great Britain	48.34	Q
6	3	Ludger Zander	West Germany	48.35	q
7	1	Edward Antczak	Poland	48.41	q
7	2	Franz-Peter Hofmeister	West Germany	48.41	Q
9	3	Slavcho Kostov	Bulgaria	48.46	q
10	2	Marian Gęsicki	Poland	48.48	q
11	1	Luis Sarría	Spain	48.61	q
12	1	Flavio Borghi	Italy	48.63	q
13	3	Michael Frederiksson	Sweden	48.86
14	3	Cezary Łapiński	Poland	49.02
15	2	Jenaro Iritia	Spain	49.20
16	2	Roberto Tozzi	Italy	49.38

Semifinals

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

Rank	Heat	Name	Nationality	Time	Notes
1	1	Marian Gęsicki	Poland	46.97	Q
2	1	Glen Cohen	Great Britain	47.07	Q
3	1	Alfons Brijdenbach	Belgium	47.64	q
4	2	Edward Antczak	Poland	47.67	Q
5	2	Francis Demarthon	France	47.76	Q
6	1	Hector Llatser	France	48.00	q
7	2	Ludger Zander	West Germany	48.13
8	2	Slavcho Kostov	Bulgaria	48.20
9	2	Flavio Borghi	Italy	48.60
10	1	Franz-Peter Hofmeister	West Germany	48.68
11	1	Luis Sarría	Spain	49.30
	2	Eddy De Leeuw	Belgium	DNS

Final

Rank	Name	Nationality	Time	Notes
	Alfons Brijdenbach	Belgium	46.53	NR
	Francis Demarthon	France	47.11
	Marian Gęsicki	Poland	47.21
4	Hector Llatser	France	47.47
5	Glen Cohen	Great Britain	47.57
6	Edward Antczak	Poland	47.82