List of Wikipedias
is a multilingual online encyclopedia edited and maintained by a community of volunteer editors., Wikipedia articles have been created in 312 languages, with 302 active and 10 closed.
Wikipedia edition codes
Each Wikipedia has a code, which is used as a subdomain below wikipedia.org. Interlanguage links are sorted by that code. The codes represent the language codes defined by ISO 639-1 and ISO 639-3, and the decision of which language code to use is usually determined by the IETF language tag policy. Wikipedias also vary by how thinly they slice dialects and variants; for example, the English Wikipedia includes most modern varieties of English, but does not include other related languages such as Scots or Anglo-Saxon, both of which have separate Wikipedias. The Spanish Wikipedia includes both Peninsular Castilian and Latin American Spanish; Malay Wikipedia includes a large number of Malay languages; and so on.Differences between the ISO mappings and Wikipedia codes include:
| WP code | WP edition | Notes | |
| :sq:|sq | Albanian | multiple | 'sq' is the ISO code for the Albanian macrolanguage, which includes four individual languages. |
| :als:|als | Alemannic | gsw | 'als' is the ISO code for Tosk Albanian. Alemannic Wikipedia covers several dialects: 'gsw' for Swiss German, Alemannic German, and Alsatian; 'gct' for Colonia Tovar dialect; 'swg' for Swabian German, and 'wae' for Walser German |
| :roa-rup:|roa-rup | Aromanian | rup | 'roa' is the ISO code for Romance. |
| :map-bms:|map-bms | Banyumasan | none | 'map' is the ISO code for Austronesian. |
| :nds-nl:|nds-nl | Dutch Low Saxon | multiple | In ISO, nds is 'Low Saxon', restricted to Germany in Ethnologue. The various subdivisions of Dutch Low Saxon have separate ISO codes. |
| :bh:|bh | Bihari | bih | ISO code 'bih' is a macrolanguage which includes Bhojpuri, Maithili, Magahi, and nine others. Bihari Wikipedia excludes Maithili and Fiji Hindi which exist as independent Wikipedias. |
| :zh-yue:|zh-yue | Cantonese | yue | zh is the ISO 639-1 code for Chinese in general. |
| :zh-classical:|zh-classical | Classical Chinese | lzh | As above. |
| :ms:|ms | Malay | ms | ISO collective code 'ms' is a macrolanguage that includes more than 30 individual languages and dialects. However, the wiki excludes Indonesian because Indonesian Wikipedia exists independently. |
| :zh-min-nan:|zh-min-nan | Min Nan | nan | Same as the "zh" languages. Not written in Chinese characters, but uses Pe̍h-ōe-jī or a derived romanization. hak does the same. |
| :no:|no | Norwegian Bokmål | nb, nob | ISO uses no for Norwegian in general. |
| :ksh:|ksh | Ripuarian | none | ISO ksh is for the Kölsch language, the most prominent dialect of the Ripuarian language group. The other variants do not have ISO codes. |
| :bat-smg:|bat-smg | Samogitian | sgs | 'bat' is the ISO code for Baltic. |
| :simple:|simple | Simple English | none | |
| :roa-tara:|roa-tara | Tarantino | none | 'roa' is the ISO code for Romance. Neapolitan in general is nap. |
| :fiu-vro:|fiu-vro | Võro | vro | fiu is the ISO code for Finno-Ugric languages. |
| :cbk-zam:|cbk-zam | Zamboanga Chavacano | none | ISO cbk is for the Chavacano language. The individual variants do not have ISO codes. |
Additionally, Wikipedias vary in orthography at times. Chinese Wikipedia automatically translates from modern Mandarin Chinese into five standard forms: Mainland China and Singapore in simplified Chinese characters, and Taiwan, Hong Kong, and Macau in traditional Chinese characters. Belarusian, however, has a separate Wikipedia for the 'normative' orthography and Taraškievica.