Dan Christensen (1942–2007) was an influential American abstract painter recognized for his contributions to Lyrical Abstraction, Color Field painting, and Abstract Expressionism. Known for his innovative techniques, vibrant color palettes, and expressive compositions, Christensen played a significant role in the development of postwar American abstraction.

Born in Nebraska, Christensen studied at the Kansas City Art Institute, graduating in 1964 before relocating to New York City in 1965. Immersed in the city's emerging avant-garde art scene, he began experimenting with unconventional painting techniques, most notably the use of industrial spray guns to create his signature spray loop paintings. These works, characterized by fluid, ribbon-like lines and luminous fields of color, established his reputation as an important figure in contemporary abstraction.

Throughout his four-decade career, Christensen continuously explored the possibilities of paint, incorporating techniques such as staining, scraping, and gestural application. His ability to balance spontaneity with formal structure distinguished his work from traditional Color Field painting. His artistic achievements earned him widespread recognition, including a Guggenheim Fellowship in 1969 and grants from the National Endowment for the Arts.

Christensen exhibited extensively throughout the United States and internationally, including exhibitions at the Whitney Museum of American Art and the Museum of Modern Art in New York. His work is represented in numerous prestigious public collections, including the Museum of Modern Art, the Whitney Museum of American Art, the Hirshhorn Museum and Sculpture Garden, and the Art Institute of Chicago