Here is a listing of the ISO 639 2 letter language codes...

  • AA "Afar"
  • AB "Abkhazian"
  • AF "Afrikaans"
  • AM "Amharic"
  • AR "Arabic"
  • AS "Assamese"
  • AY "Aymara"
  • AZ "Azerbaijani"
  • BA "Bashkir"
  • BE "Byelorussian"
  • BG "Bulgarian"
  • BH "Bihari"
  • BI "Bislama"
  • BN "Bengali" "Bangla"
  • BO "Tibetan"
  • BR "Breton"
  • CA "Catalan"
  • CO "Corsican"
  • CS "Czech"
  • CY "Welsh"
  • DA "Danish"
  • DE "German"
  • DZ "Bhutani"
  • EL "Greek"
  • EN "English" "American"
  • EO "Esperanto"
  • ES "Spanish"
  • ET "Estonian"
  • EU "Basque"
  • FA "Persian"
  • FI "Finnish"
  • FJ "Fiji"
  • FO "Faeroese"
  • FR "French"
  • FY "Frisian"
  • GA "Irish"
  • GD "Gaelic" "Scots Gaelic"
  • GL "Galician"
  • GN "Guarani"
  • GU "Gujarati"
  • HA "Hausa"
  • HI "Hindi"
  • HR "Croatian"
  • HU "Hungarian"
  • HY "Armenian"
  • IA "Interlingua"
  • IE "Interlingue"
  • IK "Inupiak"
  • IN "Indonesian"
  • IS "Icelandic"
  • IT "Italian"
  • IW "Hebrew"
  • JA "Japanese"
  • JI "Yiddish"
  • JW "Javanese"
  • KA "Georgian"
  • KK "Kazakh"
  • KL "Greenlandic"
  • KM "Cambodian"
  • KN "Kannada"
  • KO "Korean"
  • KS "Kashmiri"
  • KU "Kurdish"
  • KY "Kirghiz"
  • LA "Latin"
  • LN "Lingala"
  • LO "Laothian"
  • LT "Lithuanian"
  • LV "Latvian" "Lettish"
  • MG "Malagasy"
  • MI "Maori"
  • MK "Macedonian"
  • ML "Malayalam"
  • MN "Mongolian"
  • MO "Moldavian"
  • MR "Marathi"
  • MS "Malay"
  • MT "Maltese"
  • MY "Burmese"
  • NA "Nauru"
  • NE "Nepali"
  • NL "Dutch"
  • NO "Norwegian"
  • OC "Occitan"
  • OM "Oromo" "Afan"
  • OR "Oriya"
  • PA "Punjabi"
  • PL "Polish"
  • PS "Pashto" "Pushto"
  • PT "Portuguese"
  • QU "Quechua"
  • RM "Rhaeto-Romance"
  • RN "Kirundi"
  • RO "Romanian"
  • RU "Russian"
  • RW "Kinyarwanda"
  • SA "Sanskrit"
  • SD "Sindhi"
  • SG "Sangro"
  • SH "Serbo-Croatian"
  • SI "Singhalese"
  • SK "Slovak"
  • SL "Slovenian"
  • SM "Samoan"
  • SN "Shona"
  • SO "Somali"
  • SQ "Albanian"
  • SR "Serbian"
  • SS "Siswati"
  • ST "Sesotho"
  • SU "Sudanese"
  • SV "Swedish"
  • SW "Swahili"
  • TA "Tamil"
  • TE "Tegulu"
  • TG "Tajik"
  • TH "Thai"
  • TI "Tigrinya"
  • TK "Turkmen"
  • TL "Tagalog"
  • TN "Setswana"
  • TO "Tonga"
  • TR "Turkish"
  • TS "Tsonga"
  • TT "Tatar"
  • TW "Twi"
  • UK "Ukrainian"
  • UR "Urdu"
  • UZ "Uzbek"
  • VI "Vietnamese"
  • VO "Volapuk"
  • WO "Wolof"
  • XH "Xhosa"
  • YO "Yoruba"
  • ZH "Chinese"
  • ZU "Zulu"