Son of General Ananias Diokno, Ramon followed in his father’s footsteps of greatness, serving his country as a prominent lawyer, politician, educator, and justice and champion of laborers. An educator at heart, he founded the Colegio de Ilustracion and was one of the founders of the Rizal University as well as one of the professors. Ramon was a man who truly cared for laborers, serving as President of the Union del Trabajo de Filipinas and honorary president of the Union de Marineros de Filipinas. At the young age of 22, he was elected city councilor for the northern district of Manila. He also became Secretary of the Philippine Assembly and representative of the first district of Batangas in 1918 and 1933.
He was appointed as Corporate Counsel by President Quezon and continued to serve as Corporate Council of the Philippine National Bank, the Manila Railroad Company, the Manila Hotel Company, the National Loan and Investment Board, the Metropolitan Water District, the National Development Company, the Cebu Portland Cement Company, and the National Produce Exchange. In 1946, he was elected to the Senate of the Philippines and in 1954 he was appointed Justice of the Supreme Court by President Ramon Magsaysay, where he served until his death on April 21, 1954. By his request, Don Ramon Diokno was buried in his birthplace that he deeply loved, Taal.