Mario "Kokoy" Ong Salvador (born April 1, 1967) is a Filipino politician and businessman. He is currently representing the 2nd District of Nueva Ecija in the House of Representatives of the Philippines since 2025. He served as Mayor of San Jose, Nueva Ecija from 2016 to 2025.
In 1989, Salvador started politics when he was a barangay councilor. He also served as barangay captain.
Salvador became a city councilor in San Jose City. In 2007, Salvador was elected as vice mayor of San Jose City until 2010.
In 2013, Salvador ran for mayor of San Jose City but he lost to Marivic Belena.
In 2016, Salvador was elected as mayor of San Jose City for three consecutive terms.
In 2025, Salvador was elected to represent the second district of Nueva Ecija.