Charles H. Kahn (May 29, 1928 – March 5, 2023) was a classicist and professor emeritus of philosophy at the University of Pennsylvania. His work focused on early Greek philosophy, up to the times of Plato. His 1960 monograph on Anaximander was still as of 2020 the most important reference work on the subject, and his 1979 edition of the Heraclitus fragments likewise remained the most widely cited English translation of Heraclitus, more or less representing the 'standard interpretation' for non-expert scholars.[1]