Curaçao (Dutch: Curaçao;Papiamentu: Kòrsou) is an island in the southern Caribbean Sea, off the Venezuelan coast. The Country of Curaçao (Dutch: Land Curaçao, Papiamentu: Pais Kòrsou), which includes the main island plus the small, uninhabited island of Klein Curaçao ("Little Curaçao"), is a constituent country of the Kingdom of the Netherlands. Its capital is Willemstad.

Curaçao is the largest and most populous of the three ABC islands (for Aruba, Bonaire, and Curaçao) of the Lesser Antilles, specifically the Leeward Antilles. It has a land area of 444 square kilometres (171 square miles). As of 1 January 2009, it had a population of 141,766.

Prior to 10 October 2010, when the Netherlands Antilles was dissolved, Curaçao was administered as the Island Territory of Curaçao (Dutch: Eilandgebied Curaçao, Papiamentu: Teritorio Insular di Kòrsou), one of five island territories of the former Netherlands Antilles. The ISO 3166-1 alpha-3 country code CUW and the ISO 3166-1 alpha-2 country code CW has been assigned to Curaçao.