PLEASE consider before joining: READ the information on our website before joining!.
Please visit our Project page to learn more!
Note that if you join this project you will also be added to the relevant Scandinavian Geographical DNA project. Although pricy, you will get your best paternal results in this project with a BigY test and it is highly recommended.

Olson, Olsen are Scandinavian last names derived from a patronymic. It is not an old surname.

Since the Olson name used as surname is so recent, it is difficult to be used for DNA-research. 

People with patronymic last names from Denmark, Norway or Sweden should rather join the geographical projects for the area.