| Election Name: | 1951 Philippine Senate election |
| Country: | Philippines |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1949 Philippine Senate election |
| Previous Year: | 1949 |
| Next Election: | 1953 Philippine Senate election |
| Next Year: | 1953 |
| Seats For Election: | 8 (of the 24) seats in the Senate, 1 special election for a mid-term vacancy |
| Majority Seats: | 13 |
| Election Date: | November 13, 1951 |
| Leader1: | Mariano Jesús Cuenco (lost) |
| Party1: | Liberal Party (Philippines) |
| Seats Before1: | 17 |
| Seats After1: | 13 |
| Seat Change1: | 4 |
| Popular Vote1: | 9,280,247 |
| Percentage1: | 38.19% |
| Swing1: | 1.62% |
| Leader2: | Carlos P. Garcia |
| Party2: | Nacionalista Party |
| Seats Before2: | 4 |
| Seats After2: | 11 |
| Seat Change2: | 7 |
| Popular Vote2: | 14,140,100 |
| Percentage2: | 58.20% |
| Swing2: | 5.68% |
| Senate President | |
| Before Election: | Mariano Jesús Cuenco |
| Before Party: | Liberal Party (Philippines) |
| After Election: | Quintin Paredes |
| After Party: | Liberal Party (Philippines) |
A senatorial election was held in the Philippines on November 13, 1951. This election was known as a midterm election, and the date when elected candidates took office fells halfway through President Elpidio Quirino's four-year term.
As the Hukbalahap insurgency raged in Central Luzon, Filipinos trooped to the polling booths for the 1951 midterm elections—a referendum on President Quirino, who had won the presidency in his own right two years prior. Despite the political remarriage of the two factions of the Liberal Party, the Quirinistas and Avelinistas, the Quirino administration was still far from popular. It had gained notoriety for its inability to rein in corruption and its ineffectual attempts to police lawlessness in the countryside. The Nacionalistas took advantage of the situation and mounted an active campaign to wrest back the Senate from the LP. Led by former President Jose P. Laurel, Quirino’s chief adversary in the 1949 presidential polls, the NP swept all eight Senate seats in contention, the first total victory of the opposition in the Senate. So strong was the rejection of the Quirino administration in 1951 that even LP top honcho, Senate President Mariano Jesus Cuenco, lost his seat. Laurel received the highest number of votes, which was seen as his political rehabilitation and which made him the first and only president, thus far, to have served in the Senate after his presidency.
Felisberto Verano, also a Nacionalista, won the special elections held on the same day to fill the Senate seat vacated by Vice-President Fernando Lopez.
Block voting, established in 1941, was abolished in 1951 with Republic Act No. 599. This would later lead to more fragmented results in most national elections.[1]
The Nacionalista Party won all eight seats contested in the general election, and the seat contested in the special election.
Former Senate President Mariano Jesús Cuenco was the sole incumbent defeated, while Carlos P. Garcia successfully defended his seat.
Six winners are neophyte Nacionalista senators: Manuel Briones, Francisco Afan Delgado, Jose Locsin, Cipriano Primicias Sr., Gil Puyat and Jose Zulueta.
Nacionalista Jose P. Laurel returned to the Senate after serving from 1925 to 1931.
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| Election result | Not up< | -- | LP--> | NP | Not up | ||||||||||||||||||||||||||||||||||||||||||||
| After election | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | + | bgcolor= | √ | bgcolor= | bgcolor= | ||||||||||||||||
To serve the unexpired term of Fernando Lopez until December 30, 1953.
The seat vacated by Vicente Yap Sotto (Popular Front), who died in 1950, was one of the seats up for election. This also includes the result of the concurrent special election for the seat vacated by Vice President Fernando Lopez in 1949.