Queen consort Ragna Nikolasdottir Maase

Ragna Nikolasdottir was a Medieval Norwegian Queen consort to King Eystein II of Norway (Øystein Haraldsson).

Ragna Nikolasdottir was the daughter of Nikolas Måse from Steig in Sør-Fron in the traditional region of Gudbrandsdalen. Her marriage to King Eystein was probably made a few years after he arrived in Norway during 1142. The saga does not mention any children in connection with their marriage. Ragna was widowed when King Eystein was captured and killed by troops of his half-brother King Inge I of Norway during the summer 1157, somewhere in the area of present day Bohuslän.

Three years later in 1160, Ragna was betrothed this time with King Inge's half-brother, Orm Ivarsson, who would later become a prominent leader during the reign of King Magnus V of Norway. The wedding was scheduled to take place during February 1161, but a battle began between the forces of King Inge and King Haakon II of Norway in Bjørvika. King Inge was defeated and killed leading his men into battle on 3 February 1161. Nothing more is said in the sources of Ragna.

Queen Ragna Nikolasdatter, alongside Ingebjørg Guttormsdatter, was one of the two acknowledged queen consorts in Norway between the mid 11th century to the 13th century not to have been foreign princesses.