Wynn Bullock photographs are in the permanent collections of over 90 museums, educational institutions, and art centers. Those that have 10 or more prints include:
Australia National Gallery, Canberra, Australia
Bibliothèque Nationale, Paris, France
California Museum of Photography, University of California, Riverside, CA
Center for Creative Photography, University of Arizona, Tucson, AZ
  (Wynn was one of the five founding artists whose archives established CCP in 1975.)
College of Art, Nihon University, Tokyo, Japan
de Saisset Art Museum, Santa Clara University, Santa Clara, CA
Detrot Institute of Art, Detroit, MI
Exchange National Bank, Chicago, IL
George Eastman House, Rochester, NY  
Indiana University Photographic & Fine Arts Museum, Bloomington, IN
J. Paul Getty Museum, Los Angeles, CA
John and Mabel Ringling Museum of Art, Sarasota, FL
Kiyosato Museum of Photographic Arts, Kiyosato, Japan
Los Angeles County Museum of Art, Los Angeles, CA  
Metropolitan Museum of Art, New York, NY   
Monterey Museum of Art, Monterey, CA
Museum of Fine Arts, Boston, MA
Museum of Modern Art, New York, NY
New Orleans Museum of Art, New Orleans, LA
Oakland Museum of California, Oakland, CA
Princeton University Art Museum, Princeton, NJ
San Francisco Museum of Modern Art, San Francisco, CA
Santa Barbara Museum of Art, Santa Barbara, CA
Schnitzer Museum of Art (formerly University of Oregon Museum)  

Special Collections and Archives of the University Library
at the  University of California, Santa Cruz, CA
The Special Collections and Archives Department of UCSC's University Library is the future home of the Bullock Family Photography Archive. This major holding will preserve for future generations the creative works of three members of Bullock Family: Wynn, his wife Edna who had a 20-year career as a creative photographer after Wynn died, and their daughter Barbara Bullock-Wilson, a UCSC alumna who played pivotal roles in both her parents' careers and who is continuing to manage the family estate with the help of her husband Gene Bullock-Wilson and the support and guidance of her sister Lynne Harrington-Bullock.

Tokyo Fuji Museum of Art, Tokyo, Japan
Tokyo Metropolitan Museum of Photography, Tokyo, Japan
University of Maryland, College Park, MD
University of Texas, Austin, TX
University of Wyoming, Laramie, WY
Yamaguchi Prefectural Museum of Art, Yamaguchi, Japan

Among the other institutions are the following:

Amon Carter Museum of Western Art, Fort Worth, TX
Container Corporation of America, Chicago, IL
Crocker Art Museum, Sacramento, CA
Houston Museum of Fine Arts
Minneapolis Institute of Art
Mint Museum of Art, Charlotte, NC
Museum of Photography, Paris, France
National Gallery of Victoria, Melbourne, Australia
National Museums of Canada, Ottawa, Canada
National Museum of Modern Art, Kyoto, Japan
Photo Gallery International/Sata Corporation, Tokyo, Japan
Royal Photographic Society, Bath, England
Smithsonian Institution, Washington, D.C.
Tokyo College of Photography, Tokyo, Japan
University of California at Los Angeles, Los Angeles, CA
Victoria and Albert Museum, London, England
Whitney Museum of American Art, New York, NY
William H. Lane Foundation Collection at the Museum of Fine Arts, Boston, MA
Worcester Art Museum, Worcester, MA
Yale University Art Gallery, New Haven, CT