Kristoffer Halvorsen (born 13 April 1996) is a Norwegian former racing cyclist, who competed as a professional from 2016 to 2023.

On 13 October 2016, Halvorsen won the Men's under-23 road race in the 2016 UCI Road World Championships.

[6] Halvorsen signed for Team Sky after two seasons with the Norwegian continental team Joker Icopal.

Halvorsen was due to make his Team Sky debut, in the Tour Down Under, leading his new team in the sprints.

[7] However, on 14 January, Halvorsen crashed at the People's Choice Classic, fracturing his hand and thereby ruling him out of the Tour Down Under.