See also

• iso639-1
• iso639-2
• iso639-2b
• iso639-2t
• Open type
• SIL code
• Language
• Country codes
• Currency codes
• Wiktionary:Language codes

Wikipedia:Complete_list_of_language_wikis_available and ISO 639 Language Codes (http://www.w3.org/WAI/ER/IG/ert/iso639.htm)