Giovan Donato Giannoni Alitto (1636–1698) was a Roman Catholic prelate who served as Bishop of Ruvo (1680–1698). ^{[1] [2]}

Giovan Donato Giannoni Alitto was born in Bitonto, Italy in 1636. ^[2] On 11 March 1680, he was appointed during the papacy of Pope Innocent XI as Bishop of Ruvo. ^{[1] [2]} On 17 March 1680, he was consecrated bishop by Francesco Nerli (iuniore), Archbishop of Florence, with Stefano Brancaccio, Bishop of Viterbo e Tuscania, and Lorenzo Trotti, Bishop of Pavia, serving as co-consecrators. ^[2] He served as Bishop of Ruvo until his death in 1698. ^[2]

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

• Carolus de Tilly, Bishop of Acerra (1692);
• Francesco Antonio Triveri, Bishop of Andria (1692); and
• Nicola Cirillo, Bishop of Nicastro (1692).

• Cheney, David M. "Diocese of Ruvo". Catholic-Hierarchy.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{self-published}
• Chow, Gabriel. "Diocese of Ruvo (Italy)". GCatholic.org. Retrieved June 16, 2018. (for Chronology of Bishops) ^{self-published}