Lasse Norman Leth; né Norman Hansen; (born 11 February 1992) is a Danish professional road and track racing cyclist, who currently rides for Danish club team Team CO:PLAY–Giant Store.

During his track cycling career, he has won five medals (including two golds) at the Summer Olympic Games, ten medals (including three golds) at the UCI Track Cycling World Championships and six medals (including two golds) at the UEC European Track Championships.

[13] After the collapse of the Aqua Blue Sport team, in September 2018 he revealed that he would join the Corendon–Circus team on a two-year deal from the start of 2019, in part because they were willing to give him the freedom to compete on the track in the 2020 Summer Olympics in Tokyo.

[14] In December 2020, he signed a one-year contract with Team Qhubeka Assos, for the 2021 season.

[15] In August 2021, he won the gold medal in the Madison at the Tokyo 2020 Olympic Games in partnership with Michael Mørkøv.