Jan Hus is a 1954 Czechoslovak film about Jan Hus, an early Christian reformer. It is the first part of the "Hussite Revolutionary Trilogy", one of the most famous works of Otakar Vávra, completed with Jan Žižka (1955) and Against All (1956).

Jan Hus, sometimes anglicized as John Hus or John Huss, and referred to in historical texts as Iohannes Hus or Johannes Huss, was a Czech theologian and philosopher who became a Church reformer and the inspiration of Hussitism, a key predecessor to Protestantism, and a seminal figure in the Bohemian Reformation. Hus is considered to be the first Church reformer, even though some designate the theorist John Wycliffe. His teachings had a strong influence, most immediately in the approval of a reformed Bohemian religious denomination and, over a century later, on Martin Luther.