Astri Welhaven Heiberg (14 December 1881 – 26 May 1967) was a Norwegian painter, best known for her portraits of female nudes and landscapes.

[1][2] Welhaven Heiberg was born in Kristiania[1] into a family with close relationships with key people in Norwegian cultural life.

Hjalmar Welhaven was an architect, and designed wooden buildings and workers' homes in Kristiania.

He is best known for the house he designed for Fridtjof Nansen, Polhøgda (1900–02) in the Fornebu area, built of stone.

She studied under Vilhelm Kyhn in Copenhagen and also at Knud Bergslien's painting school in Kristiania.

During the years that Astri Welhaven was a student with Harriet Backer, she gained much experience in painting nudes.

[2] Harriet Backer is said to have advised her not to make her debut too early because she did not want her niece to exhibit until she had a solid foundation.

She received relatively good reviews in the press, where some expressed hopes for her future artistic work.

This cannot be documented, but it also cannot be ruled out because it is very likely that a travel scholarship allowed her to make her long study visit to Paris in 1924.