Pettersson is a common Swedish patronymic surname, meaning "son of Peter".
As of 2014, 92.7% of all known bearers of the surname Pettersson were residents of Sweden (frequency 1:151), 1.7% of Finland (1:4,550), 1.3% of Norway (1:5,791) and 1.0% of Denmark (1:8,338).
In Sweden, the frequency of the surname was higher than national average (1:151) in the following counties: In Finland, the frequency of the surname was higher than national average (1:4,550) in the following regions:[1]