John Alcock (/ˈælkɒk/; November 13, 1942 – January 15, 2023) was an American behavioral ecologist and author.
He was the Emeritus' Professor in the School of Life Sciences at Arizona State University.
His research interests include the evolution of diversity in insect populations, studying the adaptive value of different ways in which males find mating partners.
He authored several books, including The Kookaburras' Song: Exploring Animal Behavior in Australia (1988), Sonoran Desert Summer (1990), The Triumph of Sociobiology (2003), and Animal Behavior: An Evolutionary Approach (tenth edition, 2013).
Alcock performed extensive research and was the leading authority on the bee Centris pallida which is common in Arizona.