| Election Name: | 2001 Philippine Senate election |
| Country: | Philippines |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1998 Philippine Senate election |
| Previous Year: | 1998 |
| Next Election: | 2004 Philippine Senate election |
| Next Year: | 2004 |
| Election Date: | May 14, 2001 |
| Seats For Election: | 12 (of the 24) seats to the Senate of the Philippines and one mid-term vacancy |
| Majority Seats: | 13 |
| Alliance1: | People Power Coalition |
| Seats1: | 8 |
| Popular Vote1: | 123,491,617 |
| Percentage1: | 50.81 |
| Alliance2: | Puwersa ng Masa |
| Seats2: | 4 |
| Popular Vote2: | 95,072,114 |
| Percentage2: | 39.12 |
| Senate President | |
| Before Election: | Aquilino Pimentel Jr. |
| Before Party: | Partido Demokratiko Pilipino-Lakas ng Bayan |
| After Election: | Franklin Drilon |
| After Party: | Independent (politician) |
| Leader1: | Teofisto Guingona Jr. |
| Leader2: | Aquilino Pimentel Jr. |
| Party1: | Lakas–NUCD |
| Party2: | PDP–Laban |
The 2001 election of members to the Senate of the Philippines was the 27th election to the Senate of the Philippines. It was held on Monday, May 14, 2001, to elect 12 of the 24 seats and one mid-term vacancy in the Senate. Independent candidate Noli de Castro, a journalist and former television anchor, was announced as the topnotcher. This became the first synchronized national and local elections held after the ouster of former President Joseph Estrada in January due to a military-backed civilian uprising, popularly known as EDSA II.
The two competing coalitions in this election were the anti-Estrada People Power Coalition and the pro-Estrada Puwersa ng Masa coalition. The PPC was composed of Lakas—National Union of Christian Democrats—United Muslim Democrats of the Philippines, Partido para sa Demokratikong Reporma—Lapiang Manggagawa, Aksyon Demokratiko, Probinsya Muna Development Initiative, Liberal Party and Partido Demokratiko Pilipino—Lakas ng Bayan, while the Puwersa ng Masa included Laban ng Demokratikong Pilipino and Partido ng Masang Pilipino along with pro-Estrada independent candidates. Twelve seats were supposed to be contested but with the appointment of Teofisto Guingona Jr. as Vice President, the Commission on Elections ruled that the thirteenth-placer candidate would serve the remainder of Guingona's term.
The PPC won eight seats, the Puwersa ng Masa won four, and Noli de Castro as an independent won one; PPC's Ralph Recto edged out Puwersa ng Masa's Gregorio Honasan for the twelfth place and Honasan was elected to serve the remainder of Guingona's term. On February 20, 2007, the Supreme Court of the Philippines ruled that Honasan did lose the election but declared the special election constitutional for the remaining three-year term of Teofisto Guingona Jr.
| width=120px | Name ! | Party |
|---|---|---|
| Edgardo Angara | ||
| Reuben Canoy | ||
| Noli de Castro | ||
| Miriam Defensor Santiago | ||
| Juan Ponce Enrile | ||
| Loi Ejercito | ||
| Gregorio Honasan | ||
| Panfilo Lacson | ||
| Jamby Madrigal | ||
| Orly Mercado | ||
| Dong Puno | ||
| Nina Rasul | ||
| Ombra Tamano |
| width=120px | Name ! | Party |
|---|---|---|
| Juan Casil | ||
| Melchor Chavez | ||
| Oliver Lozano | ||
| Norma Nueva |
| width=120px | Name ! | Party |
|---|---|---|
| Homobono Adaza | ||
| Moner Bajunaid | ||
| Eddie Gil |
| width=120px | Name ! | Party |
|---|---|---|
| Manuel Morato | ||
| Rod Navarro | ||
| Camilo Sabio | ||
| Perfecto Yasay |
Note: Party affiliation based on Certificate of Candidacy.
The People Power Coalition (PPC) won eight seats, the Puwersa ng Masa won four, and an independent candidate won one. Of the four seats Puwersa ng Masa won, one was for the seat of Vice President Teofisto Guingona Jr., whose senatorial term would have ended on June 30, 2004.
Four incumbent senators won: Franklin Drilon, Juan Flavier, Ramon Magsaysay Jr. and Serge Osmeña of PPC,
There are seven neophyte senators: PPC's Joker Arroyo, Francis Pangilinan, Ralph Recto, Manny Villar, Puwersa ng Masa's Loi Ejercito and Panfilo Lacson, independent candidate Noli de Castro.
Returning is Edgardo Angara, who was term limited in the previous election.
Puwersa ng Masa senators Gregorio Honasan Miriam Defensor Santiago and Juan Ponce Enrile did not successfully defend their seats.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Before election | ‡ | ‡ | ‡ | ‡^ | ‡^ | ‡^ | ‡^ | ‡ | ‡ | ||||||||||||||||
| Election result | Not up | People Power Coalition | Ind | Not up | |||||||||||||||||||||
| After election | √ | + | + | √ | + | + | + | √ | √ | + | |||||||||||||||
| Senate bloc | Minority bloc | Majority bloc | |||||||||||||||||||||||