Giovanni de Gennaro or Giovanni de Guevara (died 1556) was a Roman Catholic prelate who served as Bishop of Sant'Agata de' Goti (1523âÂÂ1556).
On 19 June 1523, Giovanni de Gennaro was appointed during the papacy of Pope Adrian VI as Bishop of Sant'Agata de' Goti. He served as Bishop of Sant'Agata de' Goti until his death in 1556.