The Jarls of Møre (Mørejarl) were a dynasty of powerful noblemen in Norway dating to the unification of Norway. Rognvald Eysteinsson (Ragnvald Øysteinsson Mørejarl), a close friend and ally of King Harald I of Norway, was one of the first jarls of Møre.
During the early Viking era, Norway consisted of a number of petty kingdoms. King Harald I was able to unite them all after winning the Battle of Hafrsfjord in 872. Subsequently, King Harald I divided the unified kingdom again, granting land to his sons and other jarls. The land and estates of the Jarls of Møre were primary located in modern-day Sunnmøre and Nordmøre in the county of Møre og Romsdal in the northernmost part of Western Norway.
- Koht, Halvdan Harald Hårfagre og rikssamlinga (1955)