American photographer who is best known for her portraits and her images of plant life.

Cunningham studied at the University of Washington in Seattle, where she developed an interest in photography. Her earliest prints were made in the tradition of Pictorialism, a style of photography that imitated academic painting from the turn of the century. After studying photography at the Technische Hochschule in Dresden, Germany, from 1909 to 1910, Cunningham opened a portrait studio in Seattle in 1910 and soon established a solid reputation. Her commercial portraiture was straightforward, but she continued to produce soft-focused allegorical prints. She married etcher Roi Partridge in 1915, and the couple moved to San Francisco in 1917.

In the early 1930s, Cunningham worked briefly for Vanity Fair and produced images of entertainers and celebrities. After the breakup of Group f.64, she ran a portrait gallery and taught at several California art schools. A retrospective monograph, Imogen! Imogen Cunningham Photographs, 1910–1973, was published in 1974, and her final photographs were published in After Ninety in 1977.