Mario Villamor Lopez (born June 4, 1955)[1] is an associate justice of the Supreme Court of the Philippines.

He was appointed by President Rodrigo Duterte to replace Francis Jardeleza.

Lopez earned a law degree from San Beda College.

[3] He served as prosecutor of the Tanodbayan, now known as the office of the Ombudsman in 1985 and became executive judge of Batangas City in 1997 before his appointment to the Court of Appeals.

On December 3, 2019, Lopez was appointed to the court to fill the seat vacated by Francis Jardeleza.