Peter Hubert Klopfer (born August 9, 1930) is a German-born American zoologist, civil rights advocate and educator. He is Professor Emeritus of Biology at Duke University, where in 1966 he co-founded, with John Buettner-Janusch, the Duke Lemur Center (formerly Duke Primate Center). This facility houses the largest living collection of endangered primates in the world. As an educator Klopfer and his wife, Martha Smith Klopfer, were among the Quakers who founded Carolina Friends School in 1962. CFS was one of the first schools in the modern South that welcomed children of all races.