2018 European Athletics Championships – Women's 400 metres
| Women's 400 metres at the 2018 European Athletics Championships | ||||||||||
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| Venue | Olympic Stadium | |||||||||
| Location | Berlin, Germany | |||||||||
| Dates |
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| Competitors | 42 from 21 nations | |||||||||
| Winning time | 50.41 s | |||||||||
| Medalists | ||||||||||
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The women's 400 metres at the 2018 European Athletics Championships was held over three rounds at the Olympic Stadium in Berlin, Germany, on 8, 9, and 11 August 2018. It was the nineteenth time this event was contested at the European Athletics Championships. Athletes could qualify by achieving the entry standard of 53.40 seconds or by their ranking in selected athletics meetings. Forty-two athletes from twenty-one nations competed in the event.
Thirty-two athletes competed in round 1, where fourteen athletes advanced to the semi-finals. Ten athletes with a bye in the first round joined them there. Eight athletes qualified for the final, which was won by Justyna Święty-Ersetic of Poland in 50.41 seconds, followed by Maria Belimpasaki of Greece in second place in a national record of 50.45 seconds and Lisanne de Witte in third place in a national record of 50.77 seconds.