Janet Delaney (b. 1951, United States) is an American photographer known for her long-term documentary work focusing on urban life, labor, and social change. She gained recognition for her extensive series documenting San Francisco neighborhoods from the 1980s onward, capturing communities undergoing economic and cultural transformation.

Her work is grounded in a humanistic documentary tradition, combining candid street photography with a deep engagement with her subjects. Delaney’s images emphasize gesture, environment, and social context, offering nuanced portrayals of working-class life and public space.

Her photobooks, including Public Matters and Red Eye to New York, are valued for their cohesive sequencing and strong narrative structure. For collectors, Delaney’s work represents a sustained commitment to documentary photography, with particular relevance to urban studies, social history, and the evolution of American street photography.