The men's 400 metres hurdles at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 23 to 26. There were 35 competitors from 24 nations. The event was won by Félix Sánchez of the Dominican Republic, the nation's first medal in the men's 400 metres hurdles. Silver went to Danny McFarlane of Jamaica, returning to the podium in the event for the first time since 1992. Naman Keïta's bronze was France's first medal in the event in over 100 years; the last Frenchman to medal in the long hurdles was Henri Tauzin in 1900. The United States' five-Games gold medal streak ended; for only the second time in the history of the event, Americans competed but won no medals.
The men's 400 metres hurdles was the longer of the men's hurdle races in the Athletics at the 1964 Summer Olympics program in Tokyo. It was held on 14 October, 15 October, and 16 October 1964. 39 athletes from 26 nations competed, with 1 more not starting in the first round. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The first round was held on 14 October, with the semifinals on 15 October and the final on 16 October. The event was won by Rex Cawley of the United States, the nation's sixth consecutive and 11th overall victory in the men's 400 metres hurdles. For the first time since 1952, the Americans did not sweep the event. John Cooper earned Great Britain's first medal in the event since 1928 with his silver; Salvatore Morale took Italy's first-ever medal in the 400 metres hurdles with his bronze.
The men's 110 metres hurdles at the 2008 Summer Olympics took place on 18–21 August at the Beijing National Stadium. Forty-two athletes from 32 nations competed. The event was won by Dayron Robles of Cuba, the nation's second gold medal in the high hurdles.
The men's 400 metres hurdles event at the 1960 Olympic Games took place between August 31 and September 2. There were 34 competitors from 23 nations. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The event was won by Glenn Davis of the United States, the first man to successfully defend an Olympic title in the 400 metres hurdles. As of the 2016 Games, he remains the only man to do so; three others have won two gold medals in the event, but all three did so in nonconsecutive Games. It was the United States' fifth consecutive and 10th overall victory in the event. The Americans also completed their second consecutive medal sweep in the event, as Cliff Cushman took silver and Dick Howard took bronze.
The women's 400 metres hurdles competition at the 2012 Summer Olympics in London, United Kingdom was held at the Olympic Stadium on 5–8 August.
The men's 400 metres hurdles was an event at the 1972 Summer Olympics in Munich. The competition was held on 31 August - 2 September. There were 37 competitors from 25 nations. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The event was won by John Akii-Bua of Uganda, the nation's first medal in the event and first gold medal in any Olympic event. Ralph Mann returned the United States to the podium after a one-Games absence with his silver medal, while David Hemery added a bronze to his 1968 gold to become the fifth man to earn multiple medals in the event while extending Great Britain's podium streak in the 400 metres hurdles to three Games.
The Women's 400 metres competition at the 1976 Summer Olympics in Montreal, Quebec, Canada was held at the Olympic Stadium on 25–29 July.
Janieve Russell is a Jamaican track and field athlete who competes mainly in the 400 metres hurdles and the 400 metres sprint. She won an Olympic bronze medal in the 4 × 400 m relay in Tokyo 2021, where she also finished fourth in the 400m hurdles final in a personal best of 53.08 secs. She is a four-time Commonwealth Games gold medallist, winning the 400m hurdles title in 2018 and 2022, and the 4 × 400 m relay in 2014 and 2018. She has also won two relay silvers at the World Championships and a relay gold at the World Indoor Championships.
The women's 400 metres hurdles competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil was held at the Olympic Stadium between 15 and 18 August.
The women's 400 metres hurdles at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 23, 24 and 26 August.
The women's 400 metres hurdles event at the 1986 Commonwealth Games was held on 27 and 28 July at the Meadowbank Stadium in Edinburgh.
The men's 400 metres hurdles at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 6–9 August.
The women's 400 metres hurdles at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 7−8 and 10 August.
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 2024 World Indoor Champion and the short track world record holder. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team.
The women's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, United States, from 19 to 22 July 2022. It was won by Sydney McLaughlin in a world record time of 50.68 seconds. The winning margin was 1.59 seconds which as of 2024 stands as the greatest winning margin for the women's 400 metres hurdles at these championships.
The men's 400 metres hurdles at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 2 and 6 August 2022.
The women's 100 metres hurdles at the 2022 Commonwealth Games, as part of the athletics programme, took place in the Alexander Stadium on 5 and 7 August 2022.
The women's 400 metres at the 2022 European Athletics Championships took place in three rounds at the Olympiastadion in Munich, Germany, from 15 to 17 August 2022.
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.
The women's 400 metres hurdles at the 2022 World Athletics U20 Championships was held at the Estadio Olímpico Pascual Guerrero in Cali, Colombia on 2, 3 and 4 August 2022.
