Surname Ларсон (Larson 
, Larsson , Ларсон 
) , all over the world, is a widespread family name. The surname Ларсон is habitual in Northern Europe, particularly Sweden, where it is a widespread surname, Denmark, where it is quite a common surname, and Norway (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in the United States, Sweden, and Canada. Very seldom, Ларсон is the forename as well as the last name.