Sheila Pinkel (born 1941) is an American visual artist, activist and educator whose practice includes experimental light studies, photography, conceptual and graphic works, and public art. She first gained notice for cameraless photography begun in the 1970s that used light-sensitive emulsions and technologies to explore form; her later, socially conscious art combines research, data visualization, and documentary photography, making critical and ethical inquiries into the military-industrial complex and nuclear industry, consumption and incarceration patterns, and the effects of war on survivors, among other subjects. Writers identify an attempt to reveal the unseen—in nature and in culture—as a common thread in her work.