Crawford Stanley "Buzz" Holling, OC FRSC (December 6, 1930 – August 16, 2019) was a Canadian ecologist, and Emeritus Eminent Scholar and Professor in Ecological Sciences at the University of Florida.

As a teenager he was a member of the Royal Ontario Museum's Toronto Junior Field Naturalists.

After working for Forestry Canada, Buzz Holling was, at various times, Professor and Director of the Institute of Animal Resource Ecology, University of British Columbia, Director of the International Institute for Applied Systems Analysis in Vienna, and Eminent Scholar, Arthur R. Marshall Jr.

He also received the Kenneth Boulding Memorial Prize, in 2000, the Volvo Environment Prize in 2008, an Honorary Doctor of Science from the University of Guelph in 1998, and an Honorary Doctor of Science from the Simon Fraser University in 2011.

This early work on predation led to a series of papers, including his 1959 Citation Classic paper in the Canadian Entomologist, in which he developed the notion of functional response (the relationship between prey density and the rate at which prey is eaten), an idea that continues to be a linchpin of modern population ecology.

This work resulted in the 2002 book Panarchy: understanding transformations in human and natural systems.