Ivar Nosy (C. 1190-1250) was a Norwegian Liegeman, Commander, and Messenger.
In 1221 he gave the king a twenty bencher ship to fight the Ribbalds.
[3] In 1223 he was one of the liegemen present at the meeting to address King Haakon's legitimacy along with Paul Flida, Peter Flida, Brynjulf Canutesson, and Gaut of Mel.
In 1227 he is revealed to be a kinsman of Nicholas Paulsson (probably a brother) when the kings bodyguard takes him prisoner and nearly kills him because of the conflict they had with Nicholas Paulsson; Ivar is only saved by the king.
In 1235 he was one of the nine Liegemen with the king during the conflict escalation with Skule Bårdsson.