The men's 200 metres at the 1978 European Athletics Championships was held in Prague, then Czechoslovakia, at Stadion Evžena Rošického on 31 August, and 1 September 1978.
1 September Wind: -0.2 m/s
31 August
Wind: -0.2 m/s
Wind: 0 m/s
31 August
Wind: 0.5 m/s
Wind: -1.5 m/s
Wind: -0.2 m/s
Wind: 0.2 m/s
According to an unofficial count, 26 athletes from 15 countries participated in the event.