The 2010 Senate election in the Philippines occurred on May 10, 2010, to elect one-half of the Senate. The senators elected in 2010, together with those elected in 2007, comprise the Senate's delegation in the 15th Congress.
The canvassing of votes for senator was done in record time, attributed partly to the use precinct count optical scanner voting machines; the voting machines were used in a national election for the time, and proclamation for the first nine winners was done five days after Election Day, while the latter three's was done three days later. all incumbents that ran successfully defended their seats, with four former senators and two new senators being elected.
Voting for senators is via nationwide, at-large basis via plurality-at-large voting system. A voter has twelve votes: the voter can vote less than twelve but not more than it. Then votes are tallied nationwide and the twelve candidates with the highest number of votes are elected to the Senate. The Commission on Elections administers elections for the Senate, with the Senate Electoral Tribunal deciding election disputes after a Senator has taken office.
| Place | Senator | Party | Voted at* | Date proclaimed | Religion | Prior congressional and elective executive positions | Born | |
|---|---|---|---|---|---|---|---|---|
| 1st | Bong Revilla | May 15, 2010 | Senator (2004–2010), Governor of Cavite (1998–2001), Vice Governor of Cavite (1992–1998) | 1966 | ||||
| 2nd | Jinggoy Estrada | May 15, 2010 | Senator (2004–2010), Mayor of San Juan (1992–2001), Vice Mayor of San Juan (1988–1992) | 1963 | ||||
| 3rd | Miriam Defensor Santiago | May 15, 2010 | Senator (1995–2001, 2004–2010) | 1945 | ||||
| 4th | Franklin Drilon | May 15, 2010 | Senator (1995–2007; Senate President, 2000, 2001–2004) | 1945 | ||||
| 5th | Juan Ponce Enrile | May 15, 2010 | Senator (1987–1992, 1995–2001, 2004–2010; Senate President, 2008–2010), member of the House of Representatives from Cagayan's 1st district (1992–1995), Member of the Batasang Pambansa from Region II (1978–1984), and from Cagayan's at-large district (1984–1986) | 1924 | ||||
| 6th | Pia Cayetano | May 15, 2010 | Senator (2004–2010) | 1966 | ||||
| 7th | Bongbong Marcos | May 15, 2010 | Member of the House of Representatives from Ilocos Norte's 2nd district (1992–1995, 2007–2010), Governor of Ilocos Norte (1983–1986, 1998–2007) | 1957 | ||||
| 8th | Ralph Recto | May 15, 2010 | Senator (2001–2007), member of the House of Representatives from Batangas' 4th district (1992–2001) | 1964 | ||||
| 9th | Tito Sotto | May 15, 2010 | Senator (1992–2004), Vice Mayor of Quezon City (1988–1992) | 1948 | ||||
| 10th | Serge Osmeña | May 18, 2010 | Senator (1995–2007) | 1943 | ||||
| 11th | Lito Lapid | May 18, 2010 | Senator (2004–2010), Governor of Pampanga (1995–2004), Vice Governor of Pampanga (1992–1995) | 1955 | ||||
| 12th | TG Guingona | May 18, 2010 | Member of the House of Representatives from Bukidnon's 2nd district (2004–2010) | 1959 | ||||