The BBC World Sport Star of the Year was voted for by BBC Sport users.
Two Americans – gymnast Simone Biles and basketball player Caitlin Clark – plus Swiss wheelchair racer Catherine Debrunner, Dutch runner Sifan Hassan and French swimmer Leon Marchand were also shortlisted.
Duplantis set a new world record three times in 2024, first by vaulting 6.24m in April at the Diamond League meeting in Xiamen, China.
He went a centimetre higher in the Olympic final in Paris, as he finished 30cm clear of silver medallist Sam Kendricks.
And he went even higher – to the current record height of 6.26m – in Poland a few weeks later.
Duplantis is the second successive Scandinavian to win the World Sport Star award, following Norwegian footballer Erling Haaland in 2023.
