Port of Spain, officially the City of Port of Spain (also stylized Port-of-Spain), is the capital city of Trinidad and Tobago and the country's second-largest city after San Fernando and the third largest municipality after Chaguanas and San Fernando. The city has a municipal population of 37,074 (2011 census), an urban population of over 80,000 and visitors/workers of over 250,000.

The city serves primarily as a retail and administrative centre and it has been the capital of the island since 1757. It is also an important financial services centre for the Caribbean and is home of many banks.

The Port of Spain was founded near the site of the Amerindian fishing village of Cumucurapo ("place of the silk cotton trees"), located in the area today known as Mucurapo, west of the city centre. In 1560, a Spanish garrison was posted near the foot of the Laventille Hills, which today form the city's eastern boundary.