Sigurðsdóttir

Sigurðsdóttir is a common Icelandic patronymic surname, meaning "daughter of Sigurður". Patronymic surnames are traditional in Iceland and are formed by taking the father's given name and adding the suffix "-dóttir" for daughters. Therefore, any woman whose father was named Sigurður would be named Sigurðsdóttir. This contrasts with many other cultures where surnames are inherited from a family lineage. The use of patronymics means that siblings will have different surnames. For example, a brother of a Sigurðsdóttir would be named Sigurðsson, meaning "son of Sigurður".

While many Icelanders use patronymics, some families are beginning to adopt inherited surnames, though patronymics remain the norm. The name Sigurður itself is of Old Norse origin, derived from the elements "sigr" meaning "victory" and "varðr" meaning "guard". As a patronymic, Sigurðsdóttir signifies a direct paternal lineage. The prevalence of this surname is directly tied to the popularity of the given name Sigurður in Iceland.