The Dominican Republic (ⁱ/dəˌmɪnɨkən rɨˈpʌblɪk/; Spanish: República Dominicana [reˈpuβlika ðominiˈkana]) 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.

Taínos inhabited what is now the Dominican Republic since the 7th century. Christopher Columbus landed on it in 1492, and it 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. Santo Domingo can boast of many firsts in the Americas, including the first cathedral, and castle, both in the Ciudad Colonial area, a UNESCO World Heritage Site.