The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women.
Kezie Uchechukwu Duru Akabusi, MBE, known as Kriss Akabusi, is a British broadcaster and former sprint and hurdling track and field athlete.
Ellen Fiedler is a former East German 400 metres hurdler.
Sabine Busch is a retired East German athlete, who specialised in the 400 metres and the 400 metres hurdles. In 1987, she became the World Champion at 400 m hurdles and the World Indoor Champion at 400 m.
Tiffany Williams is an American hurdler who is a former US 400m hurdles champion in 2007 and 2008.
Hartmut Weber is a retired German track and field athlete who competed in the 400 metres.
René Djédjémel Mélédjé is a retired Côte d'Ivoire hurdler.
Laurent Ottoz is an Italian hurdler. He won four medals, at senior level, at international athletics competitions.
Melaine Walker O.D is a Jamaican 400 metres hurdler. She was born in Kingston. Walker is the former Olympic 400 m hurdles champion. She held the Olympic record of 52.64, set at the 2008 Beijing Olympics, and her time of 52.42 seconds at the 2009 World Championships in Berlin was the second fastest time in history at the time.
Phara Anacharsis is a French athlete who specializes in the 400 metres and the 400 metres hurdles.
Omar Cisneros Bonora is a Cuban track and field athlete who competes in the 400 metres hurdles. He is the Cuban national record holder for the event with his personal best of 47.99 seconds. He won gold medals in the hurdles and 4×400 metres relay at the Pan American Games in 2011.
Maoulida Darouèche is a Comoran hurdler who specialises in the 400 metres hurdles and who has also competed in the javelin throw. Darouèche competed in the 2012 Summer Olympics and the 2016 Summer Olympics. At both Olympics he competed in the 400 metres hurdles. He has also competed in two World Championships, an African athletics championships and a Jeux de la Francophonie.
Karsten Warholm is a Norwegian sprinter who competes in the 400 metres and 400 m hurdles. He is the 2020 Tokyo Olympic champion, silver medalist at the 2024 Paris Olympics, three-time world champion and world record holder in the latter event.
Yasmani Copello Escobar is a Cuban-born track and field hurdler who represents Turkey internationally. His personal best for the 400 metres hurdles is 47.81 seconds, set in the final of the 2018 European Athletics Championships in Berlin.
Ali Khamis Abbas Ali Khamis is a Bahraini track and field athlete who competes mainly in the 400 metres sprint and 400 metres hurdles. His personal best for the flat event is 44.36 seconds, set in 2013, while his hurdles best is 49.55 seconds, set in 2014. He was the 2014 Asian Games champion in the hurdles and the runner-up in the sprint at the 2013 Asian Athletics Championships
Nicholas Kiplagat Bett was a Kenyan track and field athlete who competed in the 400 metres hurdles. His personal best for the event is 47.79 seconds. He was a world champion in the event, having won in 2015, and a two-time bronze medallist at the African Championships in Athletics. He died in a road accident in Kenya at the age of 28.
Uwe Schmitt was a German sprinter and hurdler.
Maria Rus is a Romanian sprinter who specialized in the 400 metres and later 400 metres hurdles. Her most significant achievements was a bronze medal in the 4 × 400 metres relay at the 2004 World Indoor Championships.
Sam Turner is an American male former track and field hurdler who competed in both the 110-meter hurdles and 400-meter hurdles.
The women's 400 metres hurdles at the 2022 European Athletics Championships took place in three rounds at the Olympiastadion in Munich, Germany, from 17 to 19 August 2022.
Poland 
