2013 Argentine legislative election

Legislative elections were held in Argentina on 27 October 2013. Open primary elections (PASO) were previously held on 11 August 2013 to determine eligible party lists for the general election. As in 2011 – when such primaries were held for the first time – each party list had to reach a 1.5% threshold at the provincial level in order to proceed to the 27 October polls.

The elections renewed half of the members of the Chamber of Deputies for the period 2013–2017 and a third of the members of the Senate for the period 2013–2019. Chamber of Deputies (Lower House) elections were held in every district; Senate elections were, in turn, held in the provinces of Chaco, Entre Ríos, Neuquén, Río Negro, Salta, Santiago del Estero, and Tierra del Fuego, as well as in the City of Buenos Aires. Corrientes Province held the only elections for governor in 2013, doing so on 15 September.

These elections included two significant novelties. Following the enactment of a law to that effect in 2012, voluntary suffrage was extended to voters age 16 and 17, which increased eligible voters by 4.5% or about 1.2 million; of this total, approximately 600,000 registered to vote. Argentine voters in 2013 also parted with the traditional election-day seal stamped on National Identity Documents (DNI) by election officials, receiving instead a ballot stub with a bar code and serial number.