Þorgeirsson

Þorgeirsson is an Icelandic patronymic surname meaning “son of Þorgeir.” In Icelandic naming practice, surnames are not fixed family names but are derived from a parent’s given name. Consequently, Þorgeirsson identifies a person whose father was named Þorgeir, while the corresponding feminine form is Þorgeirsdóttir, meaning “daughter of Þorgeir.”

The given name Þorgeir is Old Norse Þorgeirr, composed of elements that evoke Thor and spear (geirr). The surname is formed by attaching the suffix -sson to the father’s given name, producing a practical identifier rather than a hereditary lineage.

In Iceland, the patronymic is used in official and everyday contexts to indicate parentage, and it typically changes with each generation as the father’s name changes. In international settings, Þorgeirsson may be treated as a fixed surname, which can create the impression of a hereditary family name even though Icelandic practice is patronymic.

Variants and transliterations include Thorgeirsson in non-Icelandic orthography. The given name Þorgeirr appears in historical Norse sources and sagas, and Þorgeirsson derives from such names. The form remains common in Icelandic contexts and among people of Icelandic heritage, reflecting the linguistic tradition of naming rather than a fixed family lineage.