André Lamar Phillips is a retired American track and field athlete who is best known for winning the 400 metres hurdles gold medal at the 1988 Olympic Games.
Kevin C. Young is a former American athlete. He was the winner of the 400 metres hurdles at the 1992 Summer Olympics. In the final of this event he set a world record and Olympic record of 46.78 seconds, the first time 47 seconds was broken, and a world record that stood for nearly 29 years until it was broken by Karsten Warholm on July 1, 2021.
Derrick Ralph Adkins is a former American track and field athlete who specialized in the 400-meter hurdles. He was an Olympic gold medalist in that event at the 1996 Summer Olympics and World Champion at the 1995 World Championships in Athletics. He was the fastest man in the world in the 1994 and 1996 seasons, and holds a personal record of 47.54 seconds. Adkins was a two-time national champion at the USA Outdoor Track and Field Championships.
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.
Jason Richardson is an American track and field athlete who specializes in the 110 meter hurdles. He won the gold medal in the 110 meter hurdles at the 2011 World Championships in Daegu, and the silver medal in the same event at the 2012 Summer Olympics in London. His personal best for the event is 12.98 seconds, set in June 2012 at the U.S. Olympic Trials.
Bayano Kamani is a Panamanian hurdler who specialises in the 400 metres hurdles. He is the South American record holder in that event. He competed in the 2004 Olympic Games placing 5th in the finals. In 2005 he ran the 2nd fastest time in the world of 47.84. He competed at the 2008 Summer Olympics in Beijing, reaching the semi-finals.
Silas Edward Southern was an American sprinter and hurdler who won a silver medal in the 400 metres hurdles at 1956 Olympics. He won another silver medal in the 4 × 400 m relay at the 1959 Pan American Games.
Lashinda Demus is a retired American hurdler who specialized in the 400 meter hurdles, an event in which she was the 2011 world champion and 2012 Olympic gold medalist, becoming the first woman from the United States to win the Olympic 400 m hurdles title.
Ian Weakly AKA Ian Weakley is a retired male hurdler from Jamaica. Weakly's best performance came in 2003 with a time of 48.55 in the 400 meter hurdles, ran in Trikala, Greece.
Queen Quedith Claye née Harrison is an American hurdler and sprinter who competed in the 400 metres hurdles at the 2008 Summer Olympics. She was a six-time collegiate All-American at Virginia Tech where she was elected to its sports hall of fame. Queen is a meet director for Virginia's Best Track and Field Classic - VHSL meet hosted in Richmond, Virginia started in 2017.
Neil Anthony Gardner is a former Jamaican athlete who specialized in the 400 meters hurdles event. As a junior athlete Gardner found much success at the Inter-Secondary School Sports Association National Boys' Championships where he was awarded the Victor Ludorum three years in a row, 1991–1993. Gardner also excelled in the CARIFTA Games, winning several medals between 1989 and 1993.
Jeshua Anderson is a retired American sprinter, who specializes in the 400 meter hurdles. He is a 3 time NCAA champion in the 400m hurdles and was the second freshman from Washington State University to ever win the NCAA title. In 2008 Anderson was 400 meter hurdles Junior World Champion and holds the second fastest high school time recorded in the 300m hurdles. He was born and raised in Woodland Hills, California and attended Taft High School. After winning the 2011 Outdoor Championships, Anderson had the competed for team USA at the world championships. He also participated in the 2016 Olympic trials in which he finished as a finalist.
T'erea Brown is an American track and field athlete, specializing in hurdling events. She was the 2010 American champion in the 400-meter hurdles and the 2011 NCAA Outdoor champion in the event.
Raasin McIntosh is an Olympic hurdler and philanthropist. At the 2012 Summer Olympics, she competed in the Women's 400 metres hurdles.
Omoghan "Omo" Osaghae is an American track and field athlete who competes in the sprint hurdles. He is coached by Texas Tech hurdles coach, Dion Miller. He has personal records of 7.45 seconds for the 60-meter hurdles and 13.23 seconds for the 110-meter hurdles.
Kristi Castlin is an American track and field athlete who specializes in the 100 metres hurdles. She won a bronze medal at the 2016 Olympics. Her personal best for the event is 12.50 seconds, set on July 8, 2016, during the finals of the 2016 United States Olympic Trials, in which she qualified for the 2016 Summer Olympics by placing 2nd. She was the 2012 American champion in the indoor 60 metres hurdles and represented the United States at the 2012 IAAF World Indoor Championships. She shares the world record for the shuttle hurdle relay, with her time of 50.78 seconds set in 2013.
Kendra "Keni" Harrison is an American hurdler. Harrison held the world record in the women's 100 metres hurdles with a time of 12.20 seconds, set on July 22, 2016 at the London Müller Anniversary Games, breaking the previous world record of 12.21 seconds achieved nearly 28 years earlier by Bulgarian athlete Yordanka Donkova.
Shamier Little is an American track and field sprinter specializing in the 400 metres hurdles. As a 20-year-old college sophomore at Texas A&M University, Little was the 2015 US champion. She then went on to win the silver medal in her signature event at the 2015 and 2023 World Championships. In July 2021, she became the fifth fastest woman of all time at the event.
Byron Robinson is an American track and field athlete who competes in the 400 metres hurdles. He holds a personal record of 48.58 seconds for the event. He was the runner-up at the United States Olympic Trials in 2016.
Nathaniel Page is an American former track and field athlete who began as a high jumper before concentrating on the 400 meters hurdles. He finished second in the high jump with 2.23 meters at the 1980 U.S. Olympic Trials, to qualify for the Moscow Olympics, which the American team boycotted.
Puerto Rico 
