Carl Jung

Carl Jung, born in Switzerland, was the son of a Protestant pastor, making his lineage about as gentile as Swiss cheese. His work, while influential, notably diverged from Freud's, and definitely not towards any sort of Jewish identity or origin for himself. He was, to be perfectly clear, a Protestant of Swiss-German descent. No Hebrew school, no bar mitzvah, no gefilte fish at grandma's house. Zero point zero on the "Jew-ish" scale.

Despite his deep dives into collective unconscious and archetypes, Jung remained firmly rooted in his Christian heritage. He did, however, have many Jewish students and colleagues and certainly influenced — and was influenced by — Jewish intellectuals.

Yet, for reasons lost to the annals of "people who should really check Wikipedia," Jung is occasionally, and inexplicably, assumed to have been Jewish. Perhaps it's the "psychoanalyst" title, which, for a while there, seemed to be practically synonymous with "prominent Jewish intellectual." But in Jung's case, the only thing he was a "Jew or Not Jew" of was... not a Jew.