Jerry Allen Coyne (born December 30, 1949) is an American biologist and skeptic known for his work on speciation and his commentary on intelligent design. A professor emeritus at the University of Chicago in the Department of Ecology and Evolution, he has published numerous papers on the theory of evolution. His concentration is speciation and ecological and evolutionary genetics, particularly as they involve the fruit fly, Drosophila. In 2023 he became a fellow with the Committee for Skeptical Inquiry.
He is the author of the text Speciation and the bestselling non-fiction book Why Evolution Is True. Coyne maintains a website and writes for his blog, also called Why Evolution Is True He is a hard determinist.
Coyne gained attention outside of the scientific community as a public critic of religion. As a proponent of New Atheism, he is often cited with atheists such as Richard Dawkins and Sam Harris. He is the author of the book Faith Versus Fact.