The 1447 papal conclave, meeting in the Roman basilica of Santa Maria sopra Minerva, elected Pope Nicholas V (Parentucelli) to succeed Pope Eugene IV (Condulmer).

Pope Nicholas V, born Tommaso Parentucelli, was head of the Catholic Church and ruler of the Papal States from 6 March 1447 until his death, in March 1455. Pope Eugene IV made him a cardinal in 1446 after successful trips to Italy and Germany, and when Eugene died the next year, Parentucelli was elected in his place. He took his name Nicholas in memory of his obligations to Niccolò Albergati.