Portrait of Théodore Flournoy

Théodore Flournoy

Swiss psychologist and parapsychologist

Lived
1853–1920

Updated September 2026

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About Théodore Flournoy

Théodore Flournoy was a Swiss professor of psychology at the University of Geneva and author of books on parapsychology and spiritism. He studied a wide variety of subjects before he devoted his life to psychology. He did extensive observations on a participant to investigate psychical phenomena. He was the President of the Sixth International Congress of Psychology, the Chair of Experimental Psychology at the University of Geneva in 1891 and was the first professor of psychology in Europe to become a member of the Faculty of Sciences instead of the Faculty of Philosophy.

Biography from Wikipedia, CC BY-SA 4.0. Photo via Wikimedia Commons.

Sources: book lists and dates from Wikidata and Open Library, ratings from Open Library readers, free texts from Project Gutenberg. Last updated September 2026.