Port of Spain is the capital of the Republic of Trinidad and Tobago and the country's third-largest municipality with a municipal population of 49,031 (2000). It is located on the Gulf of Paria, on the northwest coast of the island of Trinidad and is Trinidad and Tobago's most developed city.

The city serves primarily as a retail and administrative center, while it has been the capital of the island since 1757. It is also an important financial services center for the Caribbean and is home to two of the largest banks in the region. The city is also home to the largest container port on the island and is one of several shipping hubs of the Caribbean, exporting both agricultural products and manufactured goods. The pre-lenten Carnival is the city's main annual cultural festival and tourist attraction.

Today, Port of Spain is emerging as a leading city in the Caribbean region. Trinidad hosted the Fifth Summit of the Americas in 2009 whose guests included US President Barack Obama and US Secretary of State Hillary Clinton.