Raymond Ruyer (13 January 1902 – 1987) was a French philosopher in the late 20th century.
Author of many important works, he covered several topics such as the philosophy of biology, the philosophy of informatics, the philosophy of value and others.
His most popular book is The Gnosis of Princeton in which he presents his own philosophic views under the pretence that he was representing the views of an imaginary group of American scientists.
He developed a theory of consciousness of all living matter, named panpsychism, which was a major influence on philosophers such as Adolf Portmann, Simondon, Deleuze and Guattari.