Antigua and Barbuda (ⁱ/ænˈtiːɡə ænd bɑrˈbjuːdə/; Spanish for "ancient" and "bearded") is a twin-island nation lying between the Caribbean Sea and the Atlantic Ocean. It consists of two major inhabited islands, Antigua and Barbuda, and a number of smaller islands (including Great Bird, Green, Guinea, Long, Maiden and York Islands and further south, the island of Redonda). The permanent population number approximately 81,800 (at the 2011 Census) and the capital and largest port and city is St. John's, on Antigua.

Separated by a few nautical miles, Antigua and Barbuda are in the middle of the Leeward Islands, part of the Lesser Antilles, roughly at 17 degrees north of the Equator. The country is nicknamed "Land of 365 Beaches" due to the many beaches surrounding the islands. Its governance, language, and culture have all been strongly influenced by the British Empire, of which the country was formerly a part.

Antigua was first settled by Archaic Age hunter-gatherer Amerindians, erroneously referred to as Siboney or Ciboney.Carbon-dating has established that the earliest settlements started around 3100 BC. They were succeeded by the Ceramic Age pre-Columbian Arawak-speaking Saladoid people who migrated from the lower Orinoco River.