Filippo Calandrini (1403 – July 18, 1476) was a half-brother of Pope Nicholas V, who named him bishop of Bologna in 1447 and Cardinal Priest in 1448. Grand penitentiary from 1459. He was also bishop of Albano (1468–1471) and bishop of Porto e Santa Rufina (from August 30, 1471). He died at Bagnoreggio, at the age of 73.