Saint Juan Grande Román (†1600) was a Spanish Roman Catholic who was a professed religious of the Hospitallers of Saint John of God. He adopted the name of "John the Sinner" and he died of the plague after he tended to those who suffered from it. He was beatified in 1858 after Pope Pius IX recognized two miracles attributed to his intercession and a third allowed Pope John Paul II to canonize him in 1996.