Allan A. Schoenherr (February 6, 1937-May 31, 2021) was a Californian author, ecologist, and naturalist. He is the author of the widely used reference book, A Natural History of California. He received his PhD in zoology at Arizona State University and taught a long-running course on natural history of California University of California, Irvine. He is emeritus professor of ecology in Fullerton College. He taught classes for the of the . He was a Professor of Biology at Fullerton College for over 30 years. He died at 84 at his cabin in the Sierra Nevada outside Bishop 31 May 2021.