1959 Philippine Senate election

← 1957 November 10, 1959 1961 →
8 (of the 24) seats in the Senate 13 seats needed for a majority
Majority party Minority party   Leader Eulogio Rodriguez Ferdinand Marcos Party Nacionalista Liberal Seats before 20 (5 up) 2 (0 up) Seats won 5 2 Seats after 19 4 Seat change 1 2 Popular vote 15,426,288 9,691,155 Percentage 45.04 28.29 Swing 2.86 3.82   Third party Fourth party   Leader Lorenzo Tañada Raul Manglapus (lost) Party NCP Progressive Seats before 1 (1 up) 1 (1 up) Seats won 1 0 Seats after 1 0 Seat change 0 1 Popular vote 2,029,200 7,059,564 Percentage 5.92 20.61 Swing 1.11 8.36
Senate President before election Eulogio Rodriguez Nacionalista Elected Senate President Eulogio Rodriguez Nacionalista

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A senatorial election was held on November 10, 1959 in the Philippines. The 1959 elections were known as the 1959 Philippine midterm elections as the date when the elected officials take office falls halfway through President Carlos P. Garcia's four-year term.

The Liberal Party continued chipping away from the Nacionalista Party's dominance in the Senate, winning two more seats, although the Nacionalistas still possessed 19 out of 24 seats in the chamber.

Philippine Senate elections are held via plurality block voting with staggered elections, with the country as an at-large district. The Senate has 24 seats, of which 8 seats are up every 2 years. The eight seats up were last contested in 1953; each voter has eight votes and can vote up to eight names, of which the eight candidates with the most votes winning the election.

1. Alejo Mabanag

1. Ruperto Kangleon (Democratic), died on February 28, 1958

The Nacionalista Party won five seats contested in the election, while the Liberal Party won two, and the Nationalist Citizens' Party won one.

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.

Key:

• ‡ Seats up
• + Gained by a party from another party
• √ Held by the incumbent
• * Held by the same party with a new senator
• ^ Vacancy

Party		Votes	%	+/–	Seats
					Up	Before	Won	After	+/−
	Nacionalista Party	15,426,288	45.04	−2.86	5	20	5	19	−1
	Liberal Party	9,691,155	28.29	−3.82	0	2	2	4	+2
	Progressive Party	7,059,564	20.61	+8.36	1	1	0	0	−1
	Nationalist Citizens' Party	2,029,200	5.92	−1.11	1	1	1	1	0
	Federal Party	27,383	0.08	+0.08	0	0	0	0	0
	New Party	2,596	0.01	New	0	0	0	0	0
	Cooperative Democratic Party	2,286	0.01	New	0	0	0	0	0
	Independent	13,695	0.04	−0.44	0	0	0	0	0
Vacancy					1	1	0	0	−1
Total		34,252,167	100.00	–	8	24	8	24	0
Total votes		6,393,724	–
Registered voters/turnout		7,822,472	81.74
Source: Dieter Nohlen; Florian Grotz; Christof Hartmann; Graham Hassall; Soliman M. Santos (15 November 2001). Elections in Asia and the Pacific: A Data Handbook: Volume II: South East Asia, East Asia, and the South Pacific. ISBN 9780199249596. & Julio Teehankee. "Electoral Politics in the Philippines" (PDF). quezon.ph.

• Edmundo B. Cea (Nacionalista) retired from politics
• Emmanuel Pelaez (Progressive) ran for Vice President of the Philippines in 1961 and won

• Also held on this day:
  • 1959 Philippine local elections

• Commission on Elections
• 4th Congress of the Philippines

• Official website of the Commission on Elections