Þórarinsson
Þórarinsson is a surname of Icelandic origin, meaning son of Þórarinn. In Icelandic names, the name is not strictly a surname, but a patronymic. The name refers to:
- Árni Þórarinsson, Icelandic journalist and novelist
- Birgir Þórarinsson, Icelandic politician
- Hjálmar Þórarinsson, Icelandic professional football player
- Sigurður Þórarinsson, Icelandic geologist and vulcanologist