Son of Kohl or son of the dark-haired one
Kohlson is a modern American patronymic surname-style name. It likely derives from the German name Kohl, a diminutive of Nicholas, or refers to the charcoal-colored cosmetic kohl, implying dark features.
Less common today
Kohlson isn't in the latest US Top 1000. It last peaked at #5,055 in 2023.
US births per 5-year period, 1990βpresent (SSA data).