Samoa is a republic with a unitary state structure and a parliamentary form of government.
The unicameral parliament is directly elected at least every five years.
The 51 members of parliament are elected across in single-member constituencies via a single-round, choose-one plurality voting, aka. the first-past-the-post (FPTP) / first-preference plurality (FPP) system.
Parliament may be expanded by up to 6 seats if necessary to ensure that women make up approximately 10% of the members.
This is the description of the electoral system of Samoa as of 03.10.2026 on Electoral Knowledgebase. Sources and further information on this topic: