From Meta, a Wikimedia project coordination wiki
<option value="ab">abkhaze (ab)</option>
<option value="aa">afar (aa)</option>
<option value="ae">avestique (ae)</option>
<option value="af">afrikaans (af)</option>
<option value="ak">akan (ak)</option>
<option value="am">amharique (am)</option>
<option value="an">aragonais (an)</option>
<option value="ar">arabe (ar)</option>
<option value="as">assamais (as)</option>
<option value="av">avar (av)</option>
<option value="ay">aymara (ay)</option>
<option value="az">azéri (az)</option>
<option value="ba">bachkir (ba)</option>
<option value="be">biélorusse (be)</option>
<option value="bg">bulgare (bg)</option>
<option value="bh">bihari (bh)</option>
<option value="bi">bichlamar (bi)</option>
<option value="bm">bambara (bm)</option>
<option value="bn">bengali (bn)</option>
<option value="bo">tibétain (bo)</option>
<option value="br">breton (br)</option>
<option value="bs">bosniaque (bs)</option>
<option value="ca">catalan; valencien (ca)</option>
<option value="ce">tchétchène (ce)</option>
<option value="ch">chamorro (ch)</option>
<option value="co">corse (co)</option>
<option value="cr">cree (cr)</option>
<option value="cs">tchèque (cs)</option>
<option value="cu">slavon liturgique / vieux bulgare (cu)</option>
<option value="cv">tchouvache (cv)</option>
<option value="cy">gallois (cy)</option>
<option value="da">danois (da)</option>
<option value="de">allemand (de)</option>
<option value="dv">maldivien (dv)</option>
<option value="dz">dzongkha (dz)</option>
<option value="ee">éwé (ee)</option>
<option value="el">grec moderne (el)</option>
<option value="en">anglais (en)</option>
<option value="eo">espéranto (eo)</option>
<option value="es">espagnol; castillan (es)</option>
<option value="et">estonien (et)</option>
<option value="eu">basque (eu)</option>
<option value="fa">persan (fa)</option>
<option value="ff">peul (ff)</option>
<option value="fi">finnois (fi)</option>
<option value="fj">fidjien (fj)</option>
<option value="fo">féroïen (fo)</option>
<option value="fr" selected="selected">français (fr)</option>
<option value="fy">frison (fy)</option>
<option value="ga">irlandais (ga)</option>
<option value="gd">gaélique (gd)</option>
<option value="gl">galicien (gl)</option>
<option value="gn">guarani (gn)</option>
<option value="gu">goudjrati (gu)</option>
<option value="gv">mannois (gv)</option>
<option value="ha">haoussa (ha)</option>
<option value="he">hébreu (he)</option>
<option value="hi">hindi (hi)</option>
<option value="ho">hiri motu (ho)</option>
<option value="hr">croate (hr)</option>
<option value="ht">haïtien / créole (ht)</option>
<option value="hu">hongrois (hu)</option>
<option value="hy">arménien (hy)</option>
<option value="hz">herero (hz)</option>
<option value="ia">interlingua (ia)</option>
<option value="id">indonésien (id)</option>
<option value="ie">interlingue (ie)</option>
<option value="ig">igbo (ig)</option>
<option value="ii">yi de Sichuan (ii)</option>
<option value="ik">inupiaq (ik)</option>
<option value="io">ido (io)</option>
<option value="is">islandais (is)</option>
<option value="it">italien (it)</option>
<option value="iu">inuktitut (iu)</option>
<option value="ja">japonais (ja)</option>
<option value="jv">javanais (jv)</option>
<option value="ka">géorgien (ka)</option>
<option value="kg">kongo (kg)</option>
<option value="ki">kikuyu (ki)</option>
<option value="kj">kuanyama (kj)</option>
<option value="kk">kazakh (kk)</option>
<option value="kl">groenlandais (kl)</option>
<option value="km">khmer (km)</option>
<option value="kn">kannada (kn)</option>
<option value="ko">coréen (ko)</option>
<option value="kr">kanouri (kr)</option>
<option value="ks">kashmiri (ks)</option>
<option value="ku">kurde (ku)</option>
<option value="kv">komi (kv)</option>
<option value="kw">cornique (kw)</option>
<option value="ky">kirghize (ky)</option>
<option value="la">latin (la)</option>
<option value="lb">luxembourgeois (lb)</option>
<option value="lg">ganda (lg)</option>
<option value="li">limbourgeois (li)</option>
<option value="ln">lingala (ln)</option>
<option value="lo">lao (lo)</option>
<option value="lt">lithuanien (lt)</option>
<option value="lu">luba-katanga (lu)</option>
<option value="lv">letton (lv)</option>
<option value="mg">malgache (mg)</option>
<option value="mh">marshall (mh)</option>
<option value="mi">maori (mi)</option>
<option value="mk">macédonien (mk)</option>
<option value="ml">malayalam (ml)</option>
<option value="mn">mongol (mn)</option>
<option value="mo">moldave (mo)</option>
<option value="mr">marathe (mr)</option>
<option value="ms">malais (ms)</option>
<option value="mt">maltais (mt)</option>
<option value="my">birman (my)</option>
<option value="na">nauruan (na)</option>
<option value="nb">norvégien bokmål (nb)</option>
<option value="nd">ndébélé du Nord (nd)</option>
<option value="ne">népalais (ne)</option>
<option value="ng">ndonga (ng)</option>
<option value="nl">néerlandais (nl)</option>
<option value="nn">norvégien nynorsk (nn)</option>
<option value="no">norvégien (no)</option>
<option value="nr">ndébélé du Sud (nr)</option>
<option value="nv">navaho (nv)</option>
<option value="ny">chichewa (ny)</option>
<option value="oc">occitan (oc)</option>
<option value="oj">ojibwa (oj)</option>
<option value="om">galla (om)</option>
<option value="or">oriya (or)</option>
<option value="os">ossète (os)</option>
<option value="pa">pendjabi (pa)</option>
<option value="pi">pali (pi)</option>
<option value="pl">polonais (pl)</option>
<option value="ps">pachto (ps)</option>
<option value="pt">portugais (pt)</option>
<option value="qu">quechua (qu)</option>
<option value="rm">rhéto-roman (rm)</option>
<option value="rn">rundi (rn)</option>
<option value="ro">roumain (ro)</option>
<option value="ru">russe (ru)</option>
<option value="rw">rwanda (rw)</option>
<option value="sa">sanskrit (sa)</option>
<option value="sc">sarde (sc)</option>
<option value="sd">sindhi (sd)</option>
<option value="se">sami du Nord (se)</option>
<option value="sg">sango (sg)</option>
<option value="si">singhalais (si)</option>
<option value="sk">slovaque (sk)</option>
<option value="sl">slovène (sl)</option>
<option value="sm">samoan (sm)</option>
<option value="sn">shona (sn)</option>
<option value="so">somali (so)</option>
<option value="sq">albanais (sq)</option>
<option value="sr">serbe (sr)</option>
<option value="ss">swati (ss)</option>
<option value="st">sotho du Sud (st)</option>
<option value="su">soundanais (su)</option>
<option value="sv">suédois (sv)</option>
<option value="sw">swahili (sw)</option>
<option value="ta">tamoul (ta)</option>
<option value="te">télougou (te)</option>
<option value="tg">tadjik (tg)</option>
<option value="th">thaï (th)</option>
<option value="ti">tigrigna (ti)</option>
<option value="tk">turkmèneTurkmen
<option value="tl">tagalog (tl)</option>
<option value="tn">tswana (tn)</option>
<option value="to">tongan (to)</option>
<option value="tr">turc (tr)</option>
<option value="ts">tsonga (ts)</option>
<option value="tt">tatar (tt)</option>
<option value="tw">twi (tw)</option>
<option value="ty">tahitien (ty)</option>
<option value="ug">ouïgour (ug)</option>
<option value="uk">ukrainien (uk)</option>
<option value="ur">ourdou (ur)</option>
<option value="uz">ouszbek (uz)</option>
<option value="ve">venda (ve)</option>
<option value="vi">vietnamien (vi)</option>
<option value="vo">volapük (vo)</option>
<option value="wa">wallon (wa)</option>
<option value="wo">wolof (wo)</option>
<option value="xh">xhosa (xh)</option>
<option value="yi">yiddish (yi)</option>
<option value="yo">yoruba (yo)</option>
<option value="za">zhuang / chuang (za)</option>
<option value="zh">chinois (zh)</option>
<option value="zu">zoulou (zu)</option>
