Bergljot Håkonsdatter (b. ca. 990- d. ca 1055) was a Norwegian noble. Bergljot was the daughter of Haakon Sigurdsson (c. 937–995) Jarl of Lade and de facto ruler of Norway from about 975 until his death in 995. Bergljot was married to Einar Thambarskelfir (ca. 982-d. 1050) in a political marriage. They became the parents of (d.1050). Her husband was one of the most powerful nobles in the country and served as royal advisor during the reign of King Magnus the Good (1035–1047).