Saint Justin

Saint Justin may refer to:


 * Justin Martyr (103–165)
 * Justin the Confessor (d. 269)
 * Justin de Jacobis (1800–1860), Italian Lazarist missionary who became Vicar Apostolic of Abyssinia and titular Bishop of Nilopolis
 * 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
 * Saint Justin School, a Catholic elementary school in Santa Clara, California
 * St Justin Catholic School, a Catholic elementary school in Edmonton, Alberta