Saint Justin may refer to:
People Justin Martyr (103–165) Justin the Confessor (died 269) Justin of Chieti, venerated as an early bishop of Chieti, Italy Justin of Siponto (c. 4th century), venerated as Christian martyrs by the Catholic Church Justin de Jacobis (1800–1860), Italian Lazarist missionary who became Vicar Apostolic of Abyssinia and titular Bishop of Nilopolis Justin of Ćelije (1894–1979), also known as Justin Popović, Serbian Orthodox monk and theologian
Places
Saint Justin School, a Catholic elementary school in Santa Clara, California St Justin Catholic School, a Catholic elementary school in Edmonton, Alberta
See also San Giustino, commune