1947 Philippine Senate election

Elections for the Senate of the Philippines were held on November 11, 1947, with eight of the 24 seats in the Senate being contested. These eight seats were elected regularly; the winners were eligible to serve six-year terms from December 30, 1947, until December 30, 1953. Gubernatorial and local elections were held on the same date.

Summary
Going into the 1947 election, the Senate consisted of nine Liberals, 14 Nacionalista, and one Popular Front (Vicente Y. Sotto). Of the seats up for election in 1947, all eight seats were held by Nacionalistas.

Senate President Jose Avelino, president of the Liberal Party, scored the opposition and said, "the Nacionalista Party of today is not the party of Quezon and Osmeña ... (it is) the party of Hukbalahaps and other dissident elements." In response, Nacionalista Party President Eulogio Rodriguez appealed for the voters to give the opposition a stronger mandate to fiscalize the administration, which they accused of being corrupt and incompetent.

In the 1st Congress, the Liberals held 14 seats in the Senate, thereby retaining control of the Senate. The Liberals' total was reduced to 13 seats pursuant to the Senate Electoral Tribunal resolution in which Senator Carlos Tan (Liberal) was unseated and replaced by Eulogio Rodriguez (Nacionalista) in 1949.

Geronima Pecson became the first woman to be elected in the Senate.

Nacionalista Party

 * 1) Alauya Alonto
 * 2) Esteban de la Rama
 * 3) Pedro Hernaez
 * 4) Vicente Rama
 * 5) Proceso Sebastian

Results
The Liberal Party won seven of the eight seats up; the Nacionalista Party won the other seat.

Two incumbents, all Liberals, defended their seats: Vicente Madrigal and Emiliano Tria Tirona.

There were five neophyte senators, all Liberals: Pablo Ángeles y David, Fernando Lopez, Geronima Pecson, Lorenzo Tañada and Carlos Tan. Nacionalista Camilo Osías returns to the Senate, after last serving in 1929.

Eulogio Rodriguez of the Nacionalistas, was the sole incumbent defeated, but won an electoral protest against Tan and was seated in 1949.
 * ‡ Seats up
 * + Gained by a party from another party
 * √ Held by the incumbent
 * * Held by the same party with a new senator

Nacionalista Party

 * Eulogio Rodriguez originally lost the election, but won an election protest and was seated in 1949.