William A. Ewing (b. 1944, United States) is a curator, writer, and photography historian whose influence on contemporary photography is primarily through exhibitions, publications, and institutional leadership rather than image-making itself. He served as Director of the Musée de l’Elysée in Lausanne, where he played a key role in shaping the museum’s international profile.

Ewing has curated numerous influential exhibitions and authored or edited many significant books on photography, focusing on themes such as the human body, portraiture, and the history of the medium. His work often bridges academic research and accessible presentation, contributing to a broader understanding of photography as both art and cultural document.

For collectors, Ewing’s importance lies in his role as a key figure in the discourse and dissemination of photography. His publications and curatorial projects have had a lasting impact on photobook culture and the way photographic works are contextualized and interpreted.

William A. Ewing is an American-born curator and photography historian whose influence stems from his roles as director of the Musée de l’Élysée in Lausanne (1996–2010) and as a curator at the International Center of Photography in New York. He has authored or edited numerous books on the medium, including surveys of the body and human form in photography, and has curated exhibitions that address both iconic and overlooked photographers. His scholarship has shaped how museums and the public discuss the history and contemporary practice of photography.