Thomas Helland Larsen (born 20 April 1998) is a Norwegian cross-country skier.

At the 2016 Winter Youth Olympics he finished fourth in the 10 kilometre, won the silver medal in the cross-country cross event and the gold medal in the sprint event.

Competing at the 2017 and 2018 Junior World Championships, his biggest success was the 2017 event where he won a gold medal in the 4 × 5 kilometre relay and the silver medal in the 10 + 10 kilometre skiathlon.

His definitive breakthrough came in December 2021 in Lillehammer, where he finished second in the sprint.

This biographical article relating to Norwegian cross-country skiing is a stub.