Swedish overseas colonies consisted of the overseas colonies controlled by Sweden. Sweden possessed overseas colonies from 1638 to 1663, in 1733 and from 1784 to 1878. Sweden possessed five colonies, four of which were short lived. The colonies spanned three continents: Africa, Asia and North America.

The Swedish Empire was the period in Swedish history spanning much of the 17th and early 18th centuries during which Sweden became a European great power that exercised territorial control over much of the Baltic region. The beginning of the period is usually taken as the reign of Gustavus Adolphus, who ascended the throne in 1611, and its end as the loss of territories in 1721 following the Great Northern War.