“An endonym is the name for a place, site or location in the language of the people who live there. These names may be officially designated by the local government or they may simply be widely used. This map depicts endonyms of the countries of the world in their official or national languages. In cases where a country has more than one national or official language, the language that is most widely used by the local population is shown.”
In the Western Hemisphere, there are only two official endonyms in indigenous languages – Kalaallit Nunaat (Greenland) in Kalaallisut (Greenlandic) and Tetã Paraguái (Paraguay) in Avañe’ẽ (Guarani).
The Endonym Map was created by Nikolaus Freeman. Visit the website, and you can zoom and explore the map. Source: http://endonymmap.com/