http://www.iso.org/iso/home/standards/language_codes.htm
Language
Replicated
aa
Afar
ab
Abkhazian
ae
Avestan
af
Afrikaans
ak
Akan
am
Amharic
an
Aragonese
ar
Arabic
as
Assamese
av
Avaric
ay
Aymara
az
Azerbaijani
ba
Bashkir
be
Belarusian
bg
Bulgarian
bh
Bihari languages
bi
Bislama
bm
Bambara
bn
Bengali
bo
Tibetan
br
Breton
bs
Bosnian
ca
Catalan; Valencian
ce
Chechen
ch
Chamorro
co
Corsican
cr
Cree
cs
Czech
cv
Chuvash
cy
Welsh
da
Danish
de
German
dv
Divehi; Dhivehi; Maldivian
dz
Dzongkha
ee
Ewe
el
Greek
en
English
eo
Esperanto
es
Spanish; Castilian
et
Estonian
eu
Basque
fa
Persian
ff
Fulah
fi
Finnish
fj
Fijian
fo
Faroese
fr
French
fy
Western Frisian
ga
Irish
gd
Gaelic; Scottish Gaelic
gl
Galician
gn
Guarani
gu
Gujarati
gv
Manx
ha
Hausa
he
Hebrew
hi
Hindi
ho
Hiri Motu
hr
Croatian
ht
Haitian; Haitian Creole
hu
Hungarian
hy
Armenian
hz
Herero
id
Indonesian
ig
Igbo
ii
Sichuan Yi; Nuosu
ik
Inupiaq
io
Ido
is
Icelandic
it
Italian
iu
Inuktitut
ja
Japanese
jv
Javanese
ka
Georgian
kg
Kongo
ki
Kikuyu; Gikuyu
kj
Kuanyama; Kwanyama
kk
Kazakh
kl
Kalaallisut; Greenlandic
km
Central Khmer
kn
Kannada
ko
Korean
kr
Kanuri
ks
Kashmiri
ku
Kurdish
kv
Komi
kw
Cornish
ky
Kirghiz; Kyrgyz
la
Latin
lb
Luxembourgish; Letzeburgesch
lg
Ganda
li
Limburgan; Limburger; Limburgish
ln
Lingala
lo
Lao
lt
Lithuanian
lu
Luba-Katanga
lv
Latvian
mg
Malagasy
mh
Marshallese
mi
Maori
mk
Macedonian
ml
Malayalam
mn
Mongolian
mr
Marathi
ms
Malay
mt
Maltese
my
Burmese
na
Nauru
nb
Bokmål, Norwegian; Norwegian Bokmål
nd
Ndebele, North; North Ndebele
ne
Nepali
ng
Ndonga
nl
Dutch; Flemish
nn
Norwegian Nynorsk; Nynorsk, Norwegian
no
Norwegian
nr
Ndebele, South; South Ndebele
nv
Navajo; Navaho
ny
Chichewa; Chewa; Nyanja
oc
Occitan (post 1500)
oj
Ojibwa
om
Oromo
or
Oriya
os
Ossetian; Ossetic
pa
Panjabi; Punjabi
pi
Pali
pl
Polish
ps
Pushto; Pashto
pt
Portuguese
qu
Quechua
rm
Romansh
rn
Rundi
ro
Romanian; Moldavian; Moldovan
ru
Russian
rw
Kinyarwanda
sa
Sanskrit
sc
Sardinian
sd
Sindhi
se
Northern Sami
sg
Sango
si
Sinhala; Sinhalese
sk
Slovak
sl
Slovenian
sm
Samoan
sn
Shona
so
Somali
sq
Albanian
sr
Serbian
ss
Swati
st
Sotho, Southern
su
Sundanese
sv
Swedish
sw
Swahili
ta
Tamil
te
Telugu
tg
Tajik
th
Thai
ti
Tigrinya
tk
Turkmen
tl
Tagalog
tn
Tswana
to
Tonga (Tonga Islands)
tr
Turkish
ts
Tsonga
tt
Tatar
tw
Twi
ty
Tahitian
ug
Uighur; Uyghur
uk
Ukrainian
ur
Urdu
uz
Uzbek
ve
Venda
vi
Vietnamese
vo
Volapük
wa
Walloon
wo
Wolof
xh
Xhosa
yi
Yiddish
yo
Yoruba
za
Zhuang; Chuang
zh
Chinese
zu
Zulu