Crescentius

• The mediaeval writer on agriculture, Petrus de Crescentius, or Pietro de' Crescenzi
• Crescentius of Jesi or Crescentius Grizi of Jesi, Italian Franciscan
• Crescentius Richard Duerr, President of De La Salle College in the Philippines

• Crescentius the Elder
• Crescentius the Younger
• John Crescentius

• Crescentius of Rome, child saint
• St. Crescentius, bishop of Mainz in the 2nd century AD
• St. Crescentius, deacon of Saint Zenobius
• St. Crescentius, companion of Saint Romulus of Fiesole
• Crescentius, one of a group of four martyrs killed in 326