Giacomo Antonio Leofanti (died 1494) was a Roman Catholic prelate who served as Bishop of Patti (1486–1494).^[1]

On 9 February 1486, he was appointed by Pope Innocent VIII as Bishop of Patti.^[1] He served as Bishop of Patti until his death in 1494.^[1]

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