The 2013 election of members to the Senate of the Philippines was the 31st election to the Senate of the Philippines. It was held on Monday, May 13, 2013, to elect 12 of the 24 seats in the Senate. The winners in this election joined the winners of the 2010 election to form the 16th Congress of the Philippines. The senators elected in 2010 will serve until June 30, 2016, while the senators elected in this election will serve up to June 30, 2019. The elections to the House of Representatives as well as local elections occurred on the same date. The Philippines use plurality-at-large voting for seats in the Senate: the twelve candidates with the highest number of votes win the twelve seats up for election. The Senate seat vacated by President Benigno Aquino III in 2010 was among the twelve seats to be put for election.

Juan Valentin Furagganan Ponce Enrile Sr.,, also referred to by his initials JPE, is a Filipino politician and lawyer known for his role in the administration of Philippine president Ferdinand Marcos; his role in the failed coup that helped hasten the 1986 People Power Revolution and the ouster of Marcos; and his tenure in the Philippine legislature in the years after the revolution. Enrile has served four terms in the Senate, in a total of twenty-two years, he holds the third longest-tenure in the history of the upper chamber. In 2022, at the age of 98, he returned to government office as the Chief Presidential Legal Counsel in the administration of President Bongbong Marcos.