The Community of Portuguese Language Countries, also known as the Lusophone Community, is an international organization and political association of Lusophone nations across five continents, where Portuguese is an official language. The CPLP operates as a privileged, multilateral forum for the mutual cooperation of the governments, economies, non-governmental organizations, and peoples of the Lusofonia. The CPLP consists of 9 member states and 33 associate observers, located in Europe, South America, Asia, Africa and Oceania, totaling 38 countries and 4 organizations.

Portuguese is a Western Romance language of the Indo-European language family originating from the Iberian Peninsula of Europe. It is the official language of Portugal, Brazil, Cape Verde, Angola, Mozambique, Guinea-Bissau and São Tomé and Príncipe, and has co-official language status in East Timor, Equatorial Guinea, and Macau. Portuguese-speaking people or nations are known as "Lusophones". As the result of expansion during colonial times, a cultural presence of Portuguese speakers is also found around the world. Portuguese is part of the Ibero-Romance group that evolved from several dialects of Vulgar Latin in the medieval Kingdom of Galicia and the County of Portugal, and has kept some Celtic phonology.