José María Ferrater Mora (Catalan: Josep Ferrater i Mora; 30 October 1912 – 30 January 1991) was a Catalan philosopher, essayist and writer. He is considered the most prominent Catalan philosopher of the 20th-century and was the author of over 35 books, including a four-volume Diccionario de filosofía (Dictionary of Philosophy, 1941) and Being and Death: An Outline of Integrationist Philosophy (1962). Subjects he worked on include ontology, history of philosophy, metaphysics, anthropology, the philosophy of history and culture, epistemology, logic, philosophy of science, and ethics. He also directed several films.