Vittorio De Marino (7 June 1863 – 16 July 1929), full name Vittorio Pietro Paolo Giovanni Battista Pasquale De Martino, was an Italian physician known for his compassion for the poor of Naples and later a priest of the Barnabite Order.^[1] He was declared venerable by Pope John Paul II on 12 December 1992.

When his sister eventually died, De Marino, at the age of 47, decided to follow a religious vocation he had long felt, but which had been hindered by his parents. So, on 21 April 1910, he entered the novitiate of the Barnabite Fathers in San Felice a Cancello in Caserta, where he professed his vows the following years.^[1] As he demonstrated virtues as a doctor and as a benefactor of the people, he gained the admiration of his brothers and he was considered as an example for them. He was ordained a priest in the Archbasilica of St. John Lateran in Rome on 20 September 1913.

De Marino's first role of priestly ministry was at San Felice a Cancello in the church of St. John the Evangelist. In 1916 he was appointed Superior of the community and he kept on practicing as a doctor during World War I and during the worldwide pandemic of the Spanish flu that took many victims. In 1922 he was appointed rector of the new Apostolic School of the Barnabites in Arpino, and in 1924 he became the superior of the community of Santa Maria di Caravaggio in Piazza Dante (Naples).^[1]

De Marino was diagnosed with prostate cancer, which quickly got worse and led to his death on 16 July 1929 in Naples at the Bianchi College.^[1] His body was initially buried in the Cemetery of Poggioreale and then moved to San Giovanni Evangelista Church in San Felice a Cancello on 2 May 1954, twenty-five years later. In the same year the process for his beatification began.^[1]