Genaro del Fierro Magsaysay (19 September 1924 – 25 December 1978) was a Filipino politician and lawyer.

Magsaysay earned a bachelor's degree in law from the Ateneo de Manila University, and ran in his first national level election in 1957 under the Nacionalista Party banner, shortly after the death of his elder brother Ramon Magsaysay.

[2] In 1969, Sergio Osmeña Jr. and Genaro Magsaysay formed the Liberal Party presidential ticket, losing to incumbent Ferdinand Marcos.

During his 1971 senatorial campaign, Magsaysay was injured by two grenade explosions while attending a political rally in Manila, as were fellow politicians Ramon Bagatsing, Eva Estrada Kalaw, Eddie Ilarde, Ramon Mitra Jr., and John Henry Osmeña.

[2] Described by writer Yen Makabenta as "no talk, no mistake," Magsaysay did not often engage in oration or parliamentary debate.