Robert Glenn Ketchum (born December 1, 1947) is pioneering conservation photographer, recognized by Audubon magazine as one of 100 people “who shaped the environmental movement in the 20th century.”.
Ketchum attended high school at the Webb School of California. He received a B.A. in design from UCLA and a MFA from the California Institute of the Arts in 1974. He studied photography under the direction of Edmund Teske and Robert Heinecken. After he graduated he began a lifelong friendship with Eliot Porter, who helped form his ideas about photography and about how photography can be used to help change the world. His commitment to conservation photography is unique amongst academically-trained photographers.