About the Thomsen Surname

Many Thomsen families will find their roots under Thomson, the form most records use. Name scholars give the meaning as “Son of Thomas ("twin")”. Before spelling was fixed, Thomson was also written Thomsen. You may also find the name written Tomsen, Tomson and Tomsons.

The 2010 US Census counted 7,654 people named Thomsen, ranking it number 4,635 among American surnames. That puts it inside the top 5,000 US surnames. French birth records list 117 children named Thomsen between 1891 and 2000.

Heraldry is personal: arms associated with the Thomson surname were borne by specific families, and sharing the name does not mean sharing the blazon. Research your Thomsen family history with a full surname report and painted coat of arms.