The Parliament of Trinidad and Tobago is the legislative branch of the Government of Trinidad and Tobago. The Parliament is bicameral. It consists of the elected House of Representatives, which has 41 members elected for a five-year term in single-seat constituencies, and the Senate which has 31 members appointed by the President.

The members of the House of Representatives are elected to terms of at least 5 years. Elections may be called earlier by the president at the request of the prime minister or after a vote of no confidence in the House of Representatives. Parliamentary elections took place on November 5, 2007; the number of seats contested in the House of Representatives in that vote increased from 36 to 41. The same number of seats were contested in the May 24, 2010 elections.

The Senate's 31 members are appointed by the president: 16 on the advice of the prime minister, 6 on the advice of the leader of the opposition, and 9 independents selected by the president from among outstanding members of the community. Elected councils administer the nine regional, two city, and three borough corporations on Trinidad.

Since 1980 the Tobago House of Assembly has governed Tobago with limited responsibility for local matters.