The Tobago House of Assembly (THA) is a unicameral devolved legislative body responsible for the island of Tobago within the unitary state of Trinidad and Tobago. The THA was re-established in 1980 to rectify some of the disparities in the relationship between the two islands; a prior body of the same name existed from 1768 to 1874. In addition to the normal local government functions, the THA handles many of the responsibilities of the central government, but has limited ability to collect taxes and to impose local law or zoning regulations. At the helm of the Assembly Legislature is the Presiding Officer with the fifteen elected assemblymen, and four appointed councillors. Three of the councillors are appointed on the advice on the Chief Secretary and one on the advice of the Minority Leader. The Chief Secretary is the leader of the majority party in the assembly and is at the helm of the Executive arm of the THA.

Tobago is an island and ward within the Republic of Trinidad and Tobago. It is located 35 kilometres (22 mi) northeast of the larger island of Trinidad and about 160 kilometres (99 mi) off the northeastern coast of Venezuela. It lies to the southeast of Grenada.