William James Perry (1887–1949), usually known as W. J. Perry, was a leader in cultural anthropology at University College, London.
Megalith culture, according to him, was transmitted to the rest of the world from Egypt.
He was a convinced Hyperdiffusionist and collaborated with Grafton Elliot Smith. He was also interested in the history of religion. His daughter, a chemist, Margaret, married the eminent physiologist, Professor Robert Harkness.