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.
About 150 boys were named Kolsen in 2025.
US births per 5-year period, 1990–present (SSA data).
