Peter Michael Mayer (March 28, 1936 – May 11, 2018) was a British-born American publisher. He was born in London. Mayer was president of The Overlook Press/Peter Mayer Publishers, Inc., a Woodstock, New York-based publishing company he founded with his father in 1971. At the time of Overlook’s founding, Mayer was head of Avon Books, a large New York-based paperback publisher. From 1978 to 1996, Mayer was CEO of Penguin Books.