List of ISO 639 language codes

ISO 639 is a standardized nomenclature used to classify languages. Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural languages, largely superseding the ISO 639-2 three-letter code standard.

This table lists all two-letter codes (set 1), one per language for ISO 639 macrolanguage, and some of the three-letter codes of the other sets, formerly parts 2 and 3.

Entries in the Scope column distinguish:

• Individual language
• Collections of related languages
• Macrolanguages

The Type column distinguishes:

• Living languages
• Ancient languages (extinct since ancient times)
• Constructed languages

Notes

• Official ISO 639 list at the Library of Congress
• meta:Template:List of language names ordered by code on Wikimedia