Gestsson

Gestsson is a Icelandic patronymic surname. It signifies "son of Gestur." The name Gestur is a common given name in Iceland, meaning "guest" or "stranger." The suffix "-sson" is added to a father's given name to denote "son."

The surname Gestsson, like other Icelandic patronyms, provides a direct link to an individual's father's name, rather than indicating a family lineage stretching back many generations as surnames typically do in other cultures. It is common in Iceland for individuals to be referred to by their full name (given name and patronym) in official contexts and social interactions.

Because Icelandic names follow this naming convention, siblings will share the same surname if they have the same father. However, individuals with different fathers will have different surnames, even if they share the same mother.

The use of patronymic surnames has a long history in Iceland, dating back to the settlement era. It continues to be the primary naming system used in the country.