Gustavsson is a Swedish patronymic surname meaning "son of Gustav". It is one of several variants of the name, alongside Gustafsson, each reflecting historical spelling differences in Scandinavian naming practices. Etymology The root name Gustav itself has uncertain origins. It possibly means "staff of the Geats" from Old Norse elements gautr ("Geat") and stafr ("staff"), though the assumed form Gautstafr is not well attested in Old Norse records. Another theory links it to the Old Slavic name Gostislav. Despite its unclear beginnings, Gustav gained prominence through Swedish royalty, notably Gustav I Vasa (16th century) and five subsequent kings of Sweden. The surname Gustavsson emerged to denote descent from a male named Gustav, a common practice throughout Scandinavia. Notable Bearers Bearers of the name span diverse fields. Among notable people with the Gustafsson spelling are actors Björn Gustafson (Swedish, born 1934), football player Fredrik Gustafson (born 1976), and archaeologist Gabriel Gustafson (1853–1915), who participated in excavations of Viking ships. The variant Gustafson is equally widespread, including American football coach Andy Gustafson (1903–1979) and political scientist Barry Gustafson (born 1938). The group also shares heritage with individuals like painter Gustav Klimt (notably not a bearer of the surname, though sharing the root name). Distribution and Variation Gustavsson is most common in Sweden, while its variant Gustafsson is also frequent in Sweden, Finland (among Swedish-speaking populations), and Norway. The differing spellings—with 'f' or 'v'—were historically interchangeable; 'f' was more common in older orthography, while 'v' aligns with modern Swedish transliteration. Today, both persist as separate but related surnames. Meaning: Son of Gustav Origin: Swedish patronymic Type: Surname Usage Regions: Sweden, Finland, Norway