Giovanni Jacono (14 March 1873 – 25 May 1957) was an Italian Roman Catholic prelate who served as the Bishop of Caltanissetta from 1921 until he resigned due to age in 1956.

[3] His reputation for holiness endured in the decades after Jacono's death and this led to the introduction of his beatification cause in Caltanissetta on 24 October 2007; he was titled as a Servant of God.

He did mandated service with the armed forces following the completion of his high school education and it was following this that he asked the Archbishop of Catania Giuseppe Francica-Nava de Bontifè if he could commence his ecclesial studies.

Nava ordained Jacono to the priesthood in 1902 in Catania in San Giovanni la Punta and then sent the new priest to Rome to the Pontifical Roman Athenaeum S. Apollinare to complete further studies.

Pope Benedict XV later named Jacono in 1918 as the Bishop of Molfetta; he received his episcopal consecration from Nava in the metropolitan cathedral before his installation in his new see.

His predecessor (now Venerable) Antonio Augusto Intreccialagli defined him as "a true man of God" in a letter to Ms. Antonietta Mazzone (whom he would later encounter on one occasion).

The beatification process opened under Pope Benedict XVI on 24 October 2007 after the Congregation for the Causes of Saints titled Jacono as a Servant of God and declared nihil obstat (no objections) to the cause.