The Sturlungs (Icelandic: Sturlungar [ˈstʏ(r)tluŋkar̥]) were a powerful family clan in 13th century Iceland, in the time of the Icelandic Commonwealth. Their story is partly told in Sturlunga saga, and members of the clan were significant participants in the civil war of the Age of the Sturlungs. The Sturlungs were a wealthy and influential clan. They controlled western Iceland, the Westfjords and north eastern Iceland.
The patriarch of the Sturlungs was Sturla Þórðarson, whom scholars believe was born around 1115. He inherited his goðorð (domain, realm or area of influence) from his father Þórður Gilsson. Sturla quarrelled extensively with Einar Þorgilsson of Staðarhóll and many other chieftains. Jón Loftsson, a well-respected man, mediated in one of these disputes. Following this, he was entrusted with the upbringing of Sturla's son Snorri Sturluson, who later became the most influential of the Sturlungs and the most famous because of his literary endeavours. Snorri had two brothers, Þórður Sturluson and Sighvatur Sturluson.