Marco Giustiniani (died 23 April 1649) was a Roman Catholic prelate who served as Bishop of Verona (1631âÂÂ1649), Bishop of Ceneda (1625âÂÂ1631), and Bishop of Torcello (1625).
On 3 March 1625, Marco Giustiniani was appointed during the papacy of Pope Urban VIII as Bishop of Torcello. On 27 October 1625, he was appointed during the papacy of Pope Urban VIII as Bishop of Ceneda. On 7 April 1631, he was appointed during the papacy of Pope Urban VIII as Bishop of Verona. He served as Bishop of Verona until his death on 23 April 1649.