Kerron Stephon Clement is a Trinidadian-born American track and field athlete who competes in the 400-meter hurdles and 400-meter sprint. He held the indoor world record in the 400-meter sprint, having broken Michael Johnson's mark in 2005.
Aleksandra Andreyevna Fedoriva is a Russian track and field athlete who competes mainly in sprinting events.
Peirresha Alexandra Shakes-Drayton is a British retired track and field athlete. After specialising in the 400 metres hurdles in the early part of her career, a knee injury at the 2013 World Championships forced Shakes-Drayton to concentrate on the 400 metres on her return to athletics. She is the 2013 European Indoor Champion in the 400 metres and won a 2012 World Indoor Championship gold medal in the 4 x 400 metres relay. She has also won silver and bronze medals in the 4 × 400 m relay at the World Championships.
David "Dai" Greene is a British hurdler who specialises in the 400 metres hurdles, competing internationally for both Wales and Great Britain, as well as Europe in the IAAF Intercontinental Cup.
Anna Vasylivna Ryzhykova, nee Yaroshchuk is a Ukrainian track and field athlete who specialises in the 400 metres hurdles. At the European Athletics Championships, she won silver medals in 2012 and 2018, and bronze in 2022. Ryzhykova placed fifth at the 2020 Tokyo Olympics.
Karsten Warholm is a Norwegian sprinter who competes in the 400 metres and 400 m hurdles. He is the 2020 Tokyo Olympic champion, a three-time world champion and the world record holder in the latter event.
The men's 400 metres hurdles event at the 2014 World Junior Championships in Athletics was held in Eugene, Oregon, USA, at Hayward Field on 23, 24 and 25 July.
Nadine Visser is a Dutch track and field athlete who competed in the combined events until 2017 and specialises in short hurdling since 2018.
Yanko Ivanov Bratanov is a Bulgarian former track and field athlete. He won gold in the 400 metres at the 1976 European Indoor Championships and was an Olympic finalist in the 400 m hurdles in 1976 and 1980. After his athletic career he has worked as a coach in Qatar and Bahrain.
Wellington Zaza is a Liberian hurdler who specializes in the 110 meters hurdles and the 400 meters hurdles. Zaza is the African junior record holder in the 110 metres hurdles. He broke that record at the 2014 World Junior Championships in Athletics. He has also competed at a World Championships.
Sydney McLaughlin-Levrone is an American hurdler and sprinter who competes in the 400 meters hurdles. She is the 2020 Tokyo Olympic champion with the Games record, and 2022 World champion with a world record time of 50.68 seconds. Setting four world records during 13 months, she was the first woman to break the 52-second and 51-second barriers in the 400 m hurdles. She won the silver medal at the 2019 World Championships. At all three competitions, she also took gold as part of a women's 4 × 400 m relay team.
Femke Bol is a Dutch track and field athlete who competes in hurdling and sprinting. She specialises in the 400 metres hurdles, where she is the 2023 World Champion, and in the 400 metres, where she is the indoor world record holder. In the 4 × 400 metres relay, she is the 2023 World Champion with the Dutch women's team.
Sasha Zhoya is a French athlete who represents France in international track and field competition, specialized in hurdling events. Born in Australia, and of French and Zimbabwean descent, he represents France internationally.
Zoë Frederique Sedney is a Dutch athlete who competes in the hurdles, 100 metres, 200 metres, 400 metres and 4 × 100 metres relay. Sedney's success started in 2017 at the European Youth Olympic Festival. She broke through at senior level in 2021 competing in both the European Indoor Championships and the Olympic Games. In 2022, she became part of the 4 × 100 metres Dutch relay team, competing together with her older sister Naomi Sedney.
Ricky Petrucciani is a Swiss sprinter specialising in the 400 metres. He won a gold medal at the 2021 European U23 Championships and a silver medal at the 2022 European Championships in the 400m category. He also reached the semifinals of the 2020 Olympics.
Jaide Alexandra Stepter Baynes is an American track and field athlete who specializes in the 400 metres.
Eveline Saalberg is a Dutch sprinter who specialises in the 400 metres.
Just Kwaou-Mathey is a French athlete who competes in the 110m hurdles.
Lionel Spitz is a Swiss sprinter who specialises in the 400 metres. He won a silver medal at the 2023 European U23 Championships. Shortly after, he set a new personal best of 45.25 at the Swiss Championships and also finished in first place at the event, securing his second national title.
Julien Bonvin is a Swiss sprinter who specialises in the 400 metres hurdles. He has been the national champion in the 400 metres hurdles ever since 2021, earning the title consecutively three times in a row. He is also the 2023 Swiss champion for the indoor 200 metres.
