Portrait of the Composer Johan Backer Lunde

Harriet Backer (21 January 1845 – 25 March 1932) was a Norwegian painter who achieved recognition in her own time and was a pioneer among female artists both in the Nordic countries and in Europe generally. She is best known for her detailed interior scenes, communicated with rich colors and the interplay of light and shadow.

Backer was one of four daughters born to an affluent family at Holmestrand in Vestfold, Norway. Her parents were Nils Backer (1815–1877) and Sofie Smith Petersen (1819–1882), and she was the aunt of the painter Astri Welhaven Heiberg (1881–1967). Her father was a shipping merchant and her mother was from a wealthy family. Her family moved to Christiania (Oslo) in 1856.

She attended Wilhemine Autentrieth Girls' School (1857–1860) and Hartvig Nissen School (1863). At 12, she first took lessons in drawing and painting, notably with Joachim Calmeyer (1857). She studied with art instructor Johan Fredrik Eckersberg (1861–65), in Berlin with Alphons Holländer (1866–1867), with Christen Brun (1867–1868) and attended the painting school of Knud Bergslien (1871–74).