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Christina's World is a 1948 painting by American painter Andrew Wyeth and one of the best-known American paintings of the mid-20th century. It is a tempera work done in a realist style, depicting a woman semi-reclining on the ground in a treeless, mostly tawny field, looking up at a gray house on the horizon; a barn and various other small outbuildings are adjacent to the house. It is owned by the Museum of Modern Art in New York as part of its permanent collection.

The woman in the painting is Anna Christina Olson (May 3, 1893 – January 27, 1968). Anna had a degenerative muscular disorder which meant that she had not been able to walk since she was about 30 years old. She was firmly against using a wheelchair, so she would crawl everywhere. Wyeth was inspired to create the painting when he saw her crawling across a field while he was watching from a window in the house. He had a summer home in the area and was on friendly terms with Olson, using her and her younger brother as the subjects of paintings from 1940 to 1968. Olson was the inspiration and subject of the painting, but she was not the primary model; Wyeth's wife Betsy posed as the torso of the painting. Olson was 55 at the time that Wyeth created the work.