Antonio Nicomedes Gerona, Sr. (c. 1933 - October 13, 2013) was a lawyer by profession and former Presiding Judge of the Regional Trial Court in Naga, Camarines Sur, Philippines. He is better known as the father of Vice President Leni Robredo.
Antonio Gerona hails from the Gerona clan of Bulan, Sorsogon, married to Salvacion Sto. Tomas of Naga City. After practicing law for 19 years, Judge Gerona was appointed as the Municipal Trial Court in Cities Branch II on July 9, 1980, and as Regional Trial Court Branch 28 in Naga City on January 30, 1987.
He died on October 10, 2013 at Mother Seton Hospital in Naga.