Thomas Carlsen was born on May 14, 1976 in Fyllingsdalen near Bergen, where he now lives with his wife Anna Iren and their three daughters.
After studying in high school of his city, he attended the University of Bergen and is now a freelancer.
World International Master was highlighted at youth level by winning the silver medal at the European Cadets teams Championships of 1994 and a gold to European Juniors Teams Championships in 1996.
In 1997 he won the silver medal in the World Junior's Teams Championships, winning then the gold in 2001 and an other silver medal in the World Junior's Pairs Championships.
In the higher category he earned a bronze in the World Mind Games Teams and a silver in World Mind Games Pairs, both in 2011 added the victory in Champion Cup 2021.