Roy Wood Sellars

Roy Wood Sellars (July 9, 1880, Seaforth, Ontario – September 5, 1973, Ann Arbor, Michigan) was a Canadian-born American philosopher of critical realism and religious humanism, and a proponent of naturalistic emergent evolution (which he called evolutionary naturalism). Sellars received his B.A. from the University of Michigan. For much of his career he taught at Michigan. His son was the philosopher Wilfrid Sellars.

In his 1969 book Reflections on American Philosophy From Within he described his views on materialism as evolutionary materialism, an extension to his 1922 groundbreaking book Evolutionary Naturalism.

He helped draft the Humanist Manifesto in 1933 and also signed the Humanist Manifesto II in 1973.