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.
Zuzana Hejnová is a retired Czech athlete who specialised in the 400 metres hurdles. She won the silver medal in the event at the 2012 London Olympics. Hejnová is a two-time World Champion, having claimed titles at the 2013 and 2015 World Championships in Athletics. She won bronze at the 2012 European Championships and silver for the 400 metres at the 2017 European Indoor Championships.
Eilidh Doyle is a retired British track and field athlete. Originally running as Eilidh Child, she specialised in the 400 metres hurdles outdoors, and the 400 metres flat indoors, as well as the 4 x 400 metres relay on both surfaces. She represented Great Britain at the 2012 Olympic Games in London, and won an Olympic bronze medal in the 4 x 400 metres relay at the 2016 Games in Rio de Janeiro. Individually, she is the 2014 European Champion and a three-time Commonwealth silver medalist in the 400 metres hurdles.
Muizat Ajoke Odumosu Alademerin is a Nigerian track and field athlete who specialises in the 400 metres and the 400 metres hurdles. She represented Nigeria at the 2008 and 2012 Summer Olympics and competed at the World Championships in Athletics in 2007, 2009, 2011 and 2013. She was the bronze medallist at the 2007 All-Africa Games and went on to become the continental champion with a win at the 2008 and 2012 African Championships.
Takatoshi Abe is a Japanese track and field athlete who competes in the 400 metres hurdles. He is the reigning Asian champion in the event.
Tuvalu participates in the Pacific Games which is a multi-sport event with participation exclusively from countries in Oceania. Known as the South Pacific Games prior to 2009, the games are currently held every four years.
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.
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.
Brandon Schuster is a Samoan swimmer who represented Samoa at the 2016 Summer Olympics. He holds multiple Samoan records in swimming.
Australia competed at the 2019 Pacific Games in Apia, Samoa. A team of 42 athletes represented the country for Australia's second appearance at the Pacific Games. Australia competed in six sports.
Athletics was one of the 26 sports contested at the 2019 Pacific Games hosted by Samoa. The track and field events were held at Apia Park on 15–20 July, with the half marathon staged on a course at the Apia waterfront on 20 July. Forty-nine athletics events were contested at the games, including six parasport events.
The South Pacific Athletics Championships were an international athletics competition between island nations of the South Pacific Ocean. The championships was contested on three occasions: it was first held in 1976, had its second edition in 1978, then its final edition in 1984. Ten nations won medals at the competition during its lifetime. The competition emerged as a single-sport championship following in the footsteps of the region's multi-sport event established in 1963: the South Pacific Games. The athletics competition declined with the emergence of the South Pacific Mini Games in 1981, which was a smaller-scale event with athletics as its core sport.
Candice McLeod is a Jamaican athlete, a finalist in the women's 400 metres races at the 2020 Olympic Games and the 2022 World Athletics Championships.
Pesamino Iakopo is a Samoan sprinter and rugby union player. He represented Samoa at the 2022 Pacific Mini Games and is part of the team for the 2022 Commonwealth Games.
Kolone Alefosio is a Samoan athlete. He has represented Samoa at the Pacific Games and Commonwealth Games.
Johnny Key is a Samoan sprinter who specializes in the 100 and 200 metres. He is the current champion in the men's 100 m and 200 m for Samoa. He has also represented Samoa in the 2022 Pacific Mini Games and the 2022 Commonwealth Games.
Lesila Fiapule is a Samoan weightlifter who has represented Samoa at the Pacific Mini Games and Youth Olympic Games.
Jamaica competed at the 2022 World Athletics Championships in Eugene, United States, from 15 to 24 July 2022. The Jamaica Athletics Administrative Association entered 65 athletes.
Talatala oe Toetu Po'oi is a Tongan Athlete who has represented Tonga at the Commonwealth Games, Pacific Games, and Pacific Mini Games. He has also been a member of the Tonga national under-20 football team.
Samoa 
