Marcello Crescenzi (1500 – 28 May 1552) was an Italian Roman Catholic bishop and cardinal.
[1] Pope Paul III made him a cardinal priest in the consistory of 2 June 1542.
[1] He received the red hat and the titular church of San Marcello al Corso on 6 November 1542.
[1] On 2 November 1544 the pope appointed Cardinal Crescenzi to the Council of Trent.
[1] He was a cardinal elector at the papal conclave of 1549-50 that elected Pope Julius III.