Ronaldo "Ronny" Bayan Zamora (born December 4, 1944) is a Filipino lawyer and politician who previously served as representative of the lone district of San Juan.

[1] Zamora was first elected into public office in 1978 together with Imelda Marcos and 19 other candidates of the administration coalition Kilusang Bagong Lipunan as parliament members from Metro Manila.

In 1984, when the constituency in the Batasang Pambansa was modified—to elect members by province and cities, instead of regions—Zamora ran for the parliamentary seat for San Juan–Mandaluyong but lost to opposition candidate Neptali Gonzales.

Barred from seeking another term in 1998, Zamora helped his long-time political ally and townsmate Joseph Estrada in his presidential bid in 1998.

He would retire from politics at the end of his term in 2022, according to his son Francis, who was elected Mayor of San Juan in 2019.