The Legislative Assembly () is the legislative branch of the government of El Salvador.
The organization was founded in 1824 as the Central American Congress (). The 1824 constitution first established a bicameral legislature, including Senate. The 1880 constitution retained a bicameral legislature. The 1886 constitution introduced a unicameral legislature.
The Salvadoran legislature is a unicameral body. Until 2024, it was made up of 84 deputies, all of whom are elected by direct popular vote according to open-list proportional representation to serve three-year terms and are eligible for immediate re-election. Of these, 64 were elected in 14 multi-seat constituencies, corresponding to the country's 14 departments, which return between 3 and 16 deputies each. The remaining 20 deputies were selected on the basis of a single national constituency.
To be eligible for election to the assembly, candidates must be (Art. 126, Constitution):
On 1 June 2023, Salvadoran president Nayib Bukele issued a proposal to the Legislative Assembly to reduce the number of its seats from 84 to 60. The proposal was passed by the Legislative Assembly on 7 June 2023 and went into effect on 1 May 2024.
El Salvador also returns 20 deputies to the supranational Central American Parliament, also elected according to open-list proportional representation from a single national constituency.