Olson : 1: Americanized form (and a rare Swedish variant) of Swedish Olsson. In some cases this is also an Americanized form of the variant Ohlsson.2: Americanized form of Danish Norwegian or North German Olsen and Ohlsen cognates of 1.
Source : DAFN2 : Dictionary of American Family Names 2nd edition, ©2022 by Patrick Hanks and Oxford University Press
