Sergius (or Serge) and Bacchus were fourth-century Roman Christian soldiers revered as martyrs and military saints by the Catholic, Eastern Orthodox and Oriental Orthodox Churches. Their feast day is 7 October. According to their hagiography, Sergius and Bacchus were officers in Galerius' army, and were held high in his favor until they were exposed as secret Christians. They were then severely punished, with Bacchus dying during torture, and Sergius eventually beheaded.