Language

'lang' and 'hreflang' can assume any of the values below:

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