Bjornsdottir
Bjornsdottir is an Icelandic patronymic surname used to indicate that the bearer is the daughter of a man named Björn. In Iceland, surnames are not fixed family names; they are formed from the father’s given name plus a standard suffix. For a daughter of Björn, the proper Icelandic form is Björnsdóttir. The root Björn is of Old Norse origin, meaning bear. The corresponding male form is Björnsson, meaning son of Björn. In non-Icelandic contexts, ASCII renderings such as Bjornsdottir and Bjornsson are common.
In practice, Icelanders are typically addressed by their given name, with the patronymic serving as a surname
Outside Iceland and among the Icelandic diaspora, Björnsdóttir can appear as a fixed surname in legal documents