District 15 () is one of the 28 multi-member electoral districts of the Chamber of Deputies, the lower house of the National Congress, the national legislature of Chile. The district was created by the 2015 electoral reform and came into being at the following general election in 2017. It consists of the communes of Codegua, Coinco, Coltauco, Doñihue, Graneros, MachalÃÂ, Malloa, Mostazal, Olivar, Quinta de Tilcoco, Rancagua, Rengo and RequÃÂnoa in the region of O'Higgins. The district currently elects five of the 155 members of the Chamber of Deputies using the open party-list proportional representation electoral system. At the 2021 general election the district had 445,363 registered electors.
District 15 currently elects five of the 155 members of the Chamber of Deputies using the open party-list proportional representation electoral system. Parties may form electoral pacts with each other to pool their votes and increase their chances of winning seats. However, the number of candidates nominated by an electoral pact may not exceed the maximum number of candidates that a single party may nominate. Seats are allocated using the D'Hondt method.
Results of the 2021 general election held on 21 November 2021:
The following candidates were elected: Marta González (PPD), 1,965 votes; Marcela Riquelme (CS), 11,548 votes; Natalia Romero (UDI), 10,344 votes; Diego Schalper (RN), 17,124 votes; and Raúl Soto (PPD), 55,346 votes.
Results of the 2017 general election held on 19 November 2017:
The following candidates were elected: Juan Luis Castro (PS), 17,849 votes; Issa Kort (UDI), 16,773 votes; Javier Macaya (UDI), 25,219 votes; Diego Schalper (RN), 19,285 votes; and Raúl Soto (PDC), 9,026 votes.