Pavel Tichý (Czech: [ˈpavɛl ˈcɪxiː]; 18 February 1936, Brno, Czechoslovakia – 26 October 1994, Dunedin, New Zealand) was a Czech logician, philosopher and mathematician. He worked in the field of intensional logic and founded transparent intensional logic, an original theory of the logical analysis of natural languages – the theory is devoted to the problem of saying exactly what it is that we learn, know and can communicate when we come to understand what a sentence means. He spent roughly 25 years working on it. His main work is a book The Foundations of Frege's Logic, published by Walter de Gruyter in 1988.