This article lists political parties in Trinidad and Tobago.
Trinidad and Tobago has a de facto two-party system.
The People's National Movement (PNM) and the United National Congress (UNC) are the two biggest political parties, and have supplied every Prime Minister since 1991.
The Tobago-based Progressive Democratic Patriots (PDP) is the third biggest political party, with one assemblymember in the Tobago House of Assembly, since 2022. former PDP Independents currently govern the Tobago House of Assembly since 2022.
The PNM is the only political party which contests elections in both Trinidad and Tobago.