Saint Justus of Trieste (also Justus the Martyr, Just of Trieste; Italian: San Giusto di Trieste, San Giusto martire; died on 2 November 293) is a Roman Catholic saint. According to his passio (account of his trial and death), he was a citizen of Trieste in Italy, known for his works and charities. When charges of being a Christian were brought against him by his fellow citizens, he was tried according to Roman law. Since he refused to sacrifice to the Roman gods, he was found guilty of sacrilegium and sentenced to death by drowning. According to a local tradition, he was thrown from a small boat into the Gulf of Triest, offshore the present promontorio of Sant'Andrea.