Sigmund Freud was not notably influenced by Tillich's work. Tillich was a theologian and philosopher, while Freud was a neurologist and the founder of psychoanalysis. Tillich's work was primarily concerned with the existential questions of life, while Freud's work was focused on the unconscious mind and its role in human behavior.
The Theological Journey of Paul Tillich: A Quiz on the Father of Existentialist Christianity