harry callahan (Detroit, Michigan 1912 – Atlanta, Georgia, 1999) was an influential American photographer. He began his photography career as a self-taught photographer in 1938 and befriended Todd Webb. His work features his family, as well as the streets, scenes, and buildings of the cities where he lived. He consistently demonstrates a strong sense of line and form, of light and shadow.

In 1946, László Moholy-Nagy invited him to teach at the Institute of Design in Chicago. In 1966, he moved to Rhode Island, where he established a photography program at the School of Design, until his retirement in 1977.

In 1966 he was awarded the National Medal of Arts.