Sveinsdóttir
Sveinsdóttir is a common Icelandic patronymic surname, meaning "daughter of Sveinn." Patronymic surnames are traditional in Iceland, with the suffix "-dóttir" indicating a female descendant and "-son" indicating a male descendant of the named father. Therefore, anyone with the surname Sveinsdóttir has a father named Sveinn.
Icelandic naming conventions have historically relied on patronymics rather than inherited family surnames that are passed
The name Sveinn itself is of Old Norse origin, meaning "boy" or "youth." It is a historically