Tierney Gearon (born 9 September 1963) is an American photographer who came to prominence in Britain after a media controversy over her work at the Saatchi Gallery.
She was born in Atlanta, Georgia. She had no formal art training, but studied ballet in Utah, where a European model agency saw her. This led to five years of modeling and traveling the world. During this time she took up photography herself. A Paris agent saw some of her Polaroid photos and encouraged her to do more work. She then became a fashion photographer for five years. Her work was used in magazines and on Times Square billboards.