Ingerd Erlendsdotter (c. 1440-1526) was a Norwegian noblewoman and landowner during the 15th century.
She was the daughter and ultimate heiress of Erlend Eindridsson (died ca. 1452) and Gudrun Olavsdotter (ca. 1415-1472). Her family estate, Losnegard (Losnaætten) was located on the island of Losna at the mouth of the Sognefjord in Sogn. Through inheritance and marriage, she became one of the larger landowners in Norway.  She was commonly known as "Lady Ingerd the Elder" to distinguish her from her relative Inger Ottesdotter Rømer, the landowner of Austrått.
She was married and widowed twice; Olav Guttormsson (died before 1485) and Arald Kane (died ca. 1497). She remained childless after her two marriages. After her death in 1526, the prospect of inheriting her assets affected the political acts of the nobility of Norway, Sweden and Denmark including members of the Rosenkrantz family.
- Halvard Bjørkvik. "Ingerd Erlendsdotter, Godseier". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Halvard Bjørkvik. "Erlend Eindridsson, Ridder, Riksråd, Syslemann". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Terje Bratberg. "Losnaætten". Store norske leksikon. Retrieved May 25, 2016.
- "Spennande om Norske Riddarar" (PDF). Bergensposten. 2003. Retrieved May 25, 2016.
- "Losna-ætta". NRK.no. 2005. Retrieved May 25, 2016.
- Halvard Bjørkvik. "Ingerd Ottesdotter, Godseier, Lensleder". Norsk biografisk leksikon. Retrieved May 25, 2016.
- "Otte Holgersen Rosenkrantz". Dansk Biografisk Leksikon. Retrieved May 30, 2016.