Pope Adeodatus II, (died 17 June 676) also called Deodatus II, was Pope from 11 April 672 to his death in 676. Little is known about him. Most surviving records indicate that Adeodatus was known for his generosity, especially when it came to the poor and to pilgrims.
Born in Rome, he became a Benedictine and was a monk of the Roman cloister of St Erasmus on the Caelian Hill. He was active in improving monastic discipline and in the repression of Monothelitism and gave Venice the right to choose the doge itself. During his pontificate the basilica of St. Pietro at the eight milestone of Via Portuense. St Erasmus was also reconstructed.
Pope Adeodatus II was already an elderly man when he was elected pope and, even though he reigned for four years, not a great deal was accomplished during his pontificate.