Thomassen Name Meaning, Origin and Heraldry

Thomassen and Thompson are two spellings with one history. The family name meaning is “Son of Thom (Thomas)”, the same as for Thompson.

• Before spelling was fixed, Thompson was also written Thomassen.
• Thomassen ranked 45,495 in the 2010 US Census, with 470 people answering to the name. That is enough to place it in the top 50,000 American surnames.
• Census takers and immigration officers often wrote what they heard.
• Other spellings include Thomasson, Thomason and Tompson.

Family crest and blazon

There is no single Thomassen family crest for every bearer. Herald Lab researches the arms historically associated with the name and explains whose they were. Get the complete Thomassen report, with a museum-style coat of arms.