Thorðarson
Thorðarson is a name of Icelandic origin that functions as a patronymic meaning “son of Thorðar” (from the given name Þórðar/Þórður). In Iceland, patronymics are traditionally used instead of fixed family surnames, and a person’s surname typically changes with each generation to reflect the father’s name rather than a lineage. The form Thorðarson therefore identifies a direct paternal link rather than a long-established family clan.
Origin and orthography: The root Þórðar- derives from the given name Þórður, a Norse form related to
Usage and transmission: Because the Icelandic system treats surnames as patronymics, there is no guaranteed single
Notes: Variants and transliterations exist, and the exact spelling may vary by country and historical period.