The House of Assembly is the lower house of the Parliament of Saint Lucia, elected by popular vote. The upper house is the Senate. It has 17 or 18 members: 17 members elected for a five-year term in single-seat constituencies, and a speaker elected by the 17 members, who may be one of their number or a person chosen from outside the House. To be elected to the house, a person must be at least 21 years old.

The Parliament of Saint Lucia is the bicameral legislative branch of the government of Saint Lucia. It consists of the King, who is represented by the governor general), and the 2 parts of the legislature, the Senate and the House of Assembly.