Prospero Rebiba (died 1593) was a Roman Catholic prelate who served as Titular Patriarch of Constantinople (1573–1593) and Bishop of Troia (1560–1593).^[1][2]

On 4 Sep 1560, Prospero Rebiba was appointed Bishop of Troia by Pope Gregory XIII, upon the resignation of his uncle and predecessor, Cardinal Scipione Rebiba.^[1][2]

On 26 Aug 1573, he was also appointed Titular Patriarch of Constantinople by Pope Clement VIII, in succession to his uncle, Cardinal Rebiba, who resigned in his favor.^[1][2]

In 1592 he was appointed as Bishop of Catania, but he died before taking canonical possession of the diocese. He served as Bishop of Troia and Titular Patriarch of Constantinople until his death in 1593.^[1][2]

While bishop, he was the principal co-consecrator of:^[2]

• Pietro Giacomo Malombra, Bishop of Cariati e Cerenzia (1568);
• Ludovico de Torres (archbishop), Archbishop of Monreale (1573); and
• Enrico Cini, Bishop of Alife (1586).