The 2023 Greece 2 euro commemorative coin honours the life and scientific contributions of the distinguished mathematician Constantin Carathéodory. The national side features a portrait of the scholar, capturing his intellectual legacy as a pioneer in the fields of real analysis, the calculus of variations, and measure theory. His work remains a cornerstone of modern mathematical physics and thermodynamics, reflecting Greece’s enduring commitment to academic excellence and the global advancement of science. By commemorating this influential figure, the design highlights the profound impact of Greek scholars on the international scientific community throughout the twentieth century. The coin is issued in a standard circulation format. This commemorative issue was released in 2023 with a total mintage of 1,470,000 pieces.