Torstein Træen (born 16 July 1995) is a Norwegian racing cyclist, who currently rides for UCI WorldTeam Team Bahrain Victorious.

He competed in the men's team time trial event at the 2017 UCI Road World Championships.

However, soon after the race, he was found to have testicular cancer, detected in a doping control test which revealed the presence of hCG in his blood.

However, he crashed on stage one and broke his elbow, but elected to continue the race and ultimately finished in 95th overall.

[8] In June, he took his first pro win on stage four of the Tour de Suisse in a solo victory.