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 at the 2017 World Championships in Athletics was held at the London Olympic Stadium on 6–9 August.
The men's 400 metres hurdles at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 12, 13 and 14 July.
The women's 400 metres hurdles at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 11, 12 and 13 July.
The men's 60 metres hurdles event at the 2019 European Athletics Indoor Championships was held on 2 March 2019 at 12:02 (heats), and on 3 March 2019 at 11:05 (semifinals) and 18:10 (final) local time.
The women's 100 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 8 and 9 July.
The women's 400 metres hurdles event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 8, 9 and 10 July.
The women's 100 metres hurdles event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.
The men's 110 metres hurdles event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.
The women's 400 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 8, 9 and 10 July.
The men's 400 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 8, 9 and 10 July.
The men's 200 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.
The women's 200 metres event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 9 and 10 July.
The men's 4 × 400 metres relay event at the 2021 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 11 July.
The men's 400 metres hurdles at the 2021 World Athletics U20 Championships was held at the Kasarani Stadium on 19, 21 and 22 August.
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 men's 400 metres hurdles at the 2022 World Athletics U20 Championships was held at the Estadio Olímpico Pascual Guerrero in Cali, Colombia on 3, 4 and 5 August 2022.
The women's 100 metres hurdles event at the 2023 European Athletics U23 Championships was held in Espoo, Finland, at Leppävaara Stadium on 14 and 15 July.
The women's 400 metres hurdles event at the 2023 European Athletics U23 Championships was held in Espoo, Finland, at Leppävaara Stadium on 14 and 16 July.
The men's 400 metres hurdles event at the 2021 Summer World University Games was held on 2, 3 and 4 August 2023 at the Shuangliu Sports Centre Stadium in Chengdu, China.
