Thomas Aasen Markeng (born 18 June 2000) is a former Norwegian ski jumper.

He made his Continental Cup debut on the summer circuit in August 2017 in Szczyrk, recording his first podiums in February 2019 in Iron Mountain, Michigan with a victory and a third place.

[1] He made his FIS Ski Jumping World Cup debut in February 2019 in Willingen, where he also collected his first World Cup points with a 27th-place finish.

[1] The same month he received a berth on the Norwegian World Championships team.

This biographical article relating to Norwegian ski jumping is a stub.