Mark Anthony Santos

Mark Anthony Santos
Member-elect of the Philippine House of Representatives from Las Piñas
Assuming office
June 30, 2025
SucceedingCamille Villar
Member of the Las Piñas City Council from the 1st district
Assumed office
June 30, 2022
In office
June 30, 2010  June 30, 2019
Personal details
Born
Mark Anthony Gayoso Santos

(1963-06-14) June 14, 1963
Pasay, Rizal, Philippines
Political partyLiberal (2025–present)
Other political
affiliations
Independent (2024–2025)
NPC (2021–2024)
Nacionalista (2009–2021)
Alma materAdamson University (BS)

Mark Anthony Gayoso Santos is a Filipino politician who is the representative-elect for Las Piñas's at-large district. Before being elected to Congress, he had served as a member of the Las Piñas City Council since 2022 and previously from 2010 to 2019.

As a councilor, Santos was a vocal critic of the dominant Villar family in local congressional politics. In the 2025 Philippine House of Representatives election, he defeated Senator Cynthia Villar in a result described by several media outlets as a major electoral upset.