Son of Kol; charcoal or coal-black
Kolsen is a modern Americanized patronymic surname-style name. It likely derives from the Old Norse name Kolr, meaning 'charcoal' or 'black,' or as a variant of the Scandinavian name Colson.
Less common today
Kolsen isn't in the latest US Top 1000. It last peaked at #1,270 in 2024.
US births per 5-year period, 1990βpresent (SSA data).