Timothy Greenfield-Sanders (born February 16, 1952) is an American documentary filmmaker and portrait photographer based in New York City.

Alfred Hitchcock once remarked, "Young man, your lights are all wrong," while Bette Davis criticized him harshly for "shooting from below", according to a Photofocus.com article.

Admitting to Davis that he was eager to learn more about portraiture, she invited him to drive her around Hollywood for a week in exchange for her thoughts on photography.

Greenfield-Sanders credits Davis with alerting him to the work of George Hurrell and the art of large-format cameras.

He began his career in 1978 using a vintage 1905 Fulmer & Schwing view camera with 11"x14" Ektapan black and white film.

[22] Greenfield-Sanders exhibited "Thinking XXX", a series of clothed and nude portraits of porn stars, at the Mary Boone Gallery from October 30 to December 18, 2004.

[24] During the photo shoots for the exhibition, he directed an HBO documentary, also called Thinking XXX, about the adult stars.

About the XXX project, art critic David Rimanelli in Artforum stated: "Timothy Greenfield-Sanders, the tremendously successful photographer of presidents, Supreme Court justices, movie and music stars, famous writers, and the full panoply of artists, dealers, and critics who constitute the art world, has turned his large-format 8 x 10 Deardorff camera on the parallel universe of pornographic stardom.

His portraits of the 19 subjects were exhibited at the Newseum in Washington, D.C. On September 25, 2015, his film The Women's List aired on PBS' American Master series.

His portraits of subjects from the documentary along with 35 other images of women, from his archive, were exhibited through December 31, 2015, at the Hearst Tower Alexey Brodovitch Gallery.

In addition to the documentary, Greenfield-Sanders photographed 29 other trans subjects to include in his "list" survey exhibition at the Annenberg Space for Photography.

Interviewees include Morrison, Hilton Als, Angela Davis, Fran Lebowitz, Walter Mosley, Sonia Sanchez, and Oprah Winfrey, among others.