Alison Brendom Alves dos Santos (born 3 June 2000)[3] is a Brazilian athlete specialising in the 400 metres hurdles. He is a bronze medalist from the 2020 and 2024 Summer Olympics, the 2022 World Champion and the third fastest athlete in the history of the event, in addition to being a gold medalist in the 2019 Pan American Games. Dos Santos is currently the South American and Pan American record holder in the competition.
He was the 2022 Diamond League 400 m hurdles champion.