Saint George (Greek: Γεώργιος, translit. Geṓrgios, Latin: Georgius, Syriac: ܡܪ ܓܘܪܓܝܣ Arabic: القديس جرجس; died 23 April 303), also George of Lydda, was a Christian who is venerated as a saint in Christianity. According to tradition he was a soldier in the Roman army. Saint George was a soldier of Cappadocian Greek origin and member of the Praetorian Guard for Roman emperor Diocletian, who was sentenced to death for refusing to recant his Christian faith. He became one of the most venerated saints and megalomartyrs in Christianity, and he has been especially venerated as a military saint since the Crusades. He is respected by Christians, Druze, as well as some Muslims as a martyr of monotheistic faith.

In hagiography, as one of the Fourteen Holy Helpers and one of the most prominent military saints, he is immortalized in the legend of Saint George and the Dragon. His memorial, Saint George's Day, is traditionally celebrated on 23 April. Historically, the countries of England, Ukraine, Ethiopia, and Georgia, as well as Catalonia and Aragon in Spain, and Moscow in Russia, have claimed George as their patron saint, as have several other regions, cities, universities, professions, and organizations. The Church-Mosque of Saint George in Lod (Lydda), Israel, contains a sarcophagus believed by many Christians to contain St. George's remains.