Lorenzo Tañada of the Nationalist Citizens' Party and Nacionalistas Mariano Jesús Cuenco, Fernando Lopez, and Eulogio Rodriguez defended their Senate seats.

Lopez was originally from the Democratic Party, and ran as a Nacionalista on this election.

The two winning Liberals are neophyte senators: Estanislao Fernandez and Ferdinand Marcos.

Also entering the Senate for the first time are Nacionalistas Alejandro Almendras and Genaro Magsaysay.

Incumbent Nacionalista senators Edmundo B. Cea and Emmanuel Pelaez both lost.