Irene Ibsen Bille (10 September 1901 – 22 February 1985) (née Irene Ibsen) was a Norwegian novelist and playwright.
She was born in Kristiania as a daughter of Prime Minister Sigurd Ibsen.[1] She was a sister of Tancred Ibsen, paternal granddaughter of world-famous writer Henrik Ibsen and Suzannah Ibsen (née Thoresen), daughter of Bergliot Ibsen (née Bjørnson)[2] and maternal granddaughter of Bjørnstjerne Bjørnson and Karoline Bjørnson (née Reimers).[3]
Irene Ibsen married Danish writer Steen Andersen Josias Christopher Bille (called Josias), a member of the ancient noble Bille family, in 1930, and moved to Denmark.[4] Her first dramatic work, Uten ansikt ('Faceless'), was published here. Kysset ('The Kiss') followed in 1965. In the same year she issued the novel Det leende vindu ('The Laughing Window').[1] She died in February 1985.[4]