The Dominican Republic is a nation on the island of Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. The western third of the island is occupied by the nation of Haiti, making Hispaniola one of two Caribbean islands that are shared by two countries. Both by area and population, the Dominican Republic is the second largest Caribbean nation (after Cuba), with 48,442 square kilometres (18,704 sq mi) and an estimated 10 million people.

Inhabited by Taínos since the seventh century, the territory of the Dominican Republic was reached by Christopher Columbus in 1492 and became the site of the first permanent European settlement in the Americas, namely Santo Domingo, the country's capital and Spain's first capital in the New World. In Santo Domingo stand, among other firsts in the Americas, the first university, cathedral, and castle, the latter two in the Ciudad Colonial area, a UNESCO World Heritage Site.