Only states, which are defined as sovereign, internationally recognised, independent political entities, are listed. This is not a list of countries or nations, although many states listed, are simultaneously also countries and/or nations.
Official language: one designated as having a unique legal status in the state, typically, the language used in a nation's legislative bodies, and often, official government business
Regional language: one designated as having official status limited to a specific area, administrative division, or territory of the state (on this page a regional language will have parentheses next to it that contain a region, province, etc. where the language has regional status)
Minority language: (as used here) one spoken by a minority population within the state and officially designated as such; typically afforded protection and designated an officially permissible language for legal and government business in a specific area or territory of the state (on this page a minority language will be followed by parentheses that identify its minority status)
National language: one that uniquely represents the national identity of a state, nation, and/or country and so designated by a country's government; some are technically minority languages (on this page a national language will be followed by parentheses that identify it as a national language status)
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