W
| 3字母 | 639-2（如有） | 639-1（如有） | SIL | 英語名稱 | 中文名稱 |
| waa | WAA | Walla Walla | |||
| wab | WAB | Wab | |||
| wac | WAC | Wasco-Wishram | |||
| wad | WAD | Wandamen | |||
| wae | WAE | Walser | 瓦爾瑟語 | ||
| waf | WAF | Wakoná | |||
| wag | WAG | Wa'ema | |||
| wah | WAH | Watubela | |||
| wai | WAI | Wares | |||
| waj | WAJ | Waffa | |||
| wak | wak | Wakashan languages | 瓦卡什語系 | ||
| wal | wal | WBC | Wolaytta | 瓦拉莫語 | |
| wam | WAM | Wampanoag | |||
| wan | WAN | Wan | |||
| wao | WAO | Wappo | |||
| wap | WAP | Wapishana | |||
| waq | WAQ | Wageman | |||
| war | war | WRY | Waray (Philippines) | 瓦賴語 | |
| was | was | WAS | Washo | 瓦肖語 | |
| wat | WAT | Kaninuwa | |||
| wau | WAU | Waurá | |||
| wav | WAV | Waka | |||
| waw | WAW | Waiwai | |||
| wax | WAX | Watam | |||
| way | WAY | Wayana | |||
| waz | WAZ | Wampur | |||
| wba | WBA | Warao | |||
| wbb | WBB | Wabo | |||
| wbe | WBE | Waritai | |||
| wbf | WBF | Wara | |||
| wbh | WBH | Wanda | |||
| wbi | WBI | Vwanji | |||
| wbj | WBJ | Alagwa | |||
| wbk | WBK | Waigali | |||
| wbl | WBL | Wakhi | 瓦罕語 | ||
| wbm | WBM | Wa | 佤語 | ||
| wbp | WBP | Warlpiri | |||
| wbq | WBQ | Waddar | |||
| wbr | WBR | Wagdi | |||
| wbt | WBT | Wanman | |||
| wbv | WBV | Wajarri | |||
| wbw | WBW | Woi | |||
| wca | WCA | Yanomámi | |||
| wci | WCI | Waci Gbe | |||
| wdd | WDD | Wandji | |||
| wdg | WDG | Wadaginam | |||
| wdj | WDJ | Wadjiginy | |||
| wdu | WDU | Wadjigu | |||
| wea | WEA | Wewaw | |||
| wec | WEC | Wè Western | |||
| wed | WED | Wedau | |||
| weh | WEH | Weh | |||
| wei | WEI | Were | |||
| wel | wel; cym | cy | WLS | Welsh | 威爾斯語、威爾斯語 |
| wem | WEM | Weme Gbe | |||
| wen | wen | Sorbian languages | 索布諸語言 | ||
| weo | WEO | North Wemale | |||
| wep | WEP | Westphalien | 斯特法倫語 | ||
| wer | WER | Weri | |||
| wes | WES | Cameroon Pidgin | |||
| wet | WET | Perai | |||
| weu | WEL | Welaung | |||
| wew | WEW | Wejewa | |||
| wfg | WFG | Yafi | |||
| wga | WGA | Wagaya | |||
| wgg | WGG | Wangganguru | |||
| wgi | WAK | Wahgi | |||
| wgo | WGO | Waigeo | |||
| wgw | WGW | Wagawaga | |||
| wgy | WGY | Warrgamay | |||
| wha | WHA | Manusela | |||
| whg | WHG | North Wahgi | |||
| whk | WHK | Wahau Kenyah | |||
| whu | WHU | Wahau Kayan | |||
| wib | WIB | Southern Toussian | |||
| wic | WIC | Wichita | |||
| wie | WIE | Wik-Epa | |||
| wif | WIF | Wik-Keyangan | |||
| wig | WIG | Wik-Ngathana | |||
| wih | WIH | Wik-Me'anha | |||
| wii | WII | Minidien | |||
| wij | WIJ | Wik-Iiyanh | |||
| wik | WIK | Wikalkan | |||
| wil | WIL | Wilawila | |||
| wim | WIM | Wik-Mungkan | |||
| win | WIN | Ho-Chunk | |||
| wir | WIR | Wiraféd | |||
| wit | WIT | Wintu | |||
| wiu | WIU | Wiru | |||
| wiv | WIV | Muduapa | |||
| wiw | WIW | Wirangu | |||
| wiy | WIY | Wiyot | |||
| wja | WJA | Waja | |||
| wji | WJI | Warji | |||
| wka | WKA | Kw'adza | |||
| wkb | Kumbaran | ||||
| wkd | WKD | Wakde | |||
| wkl | Kalanadi | ||||
| wku | Kunduvadi | ||||
| wkw | WKW | Wakawaka | |||
| wla | WLA | Walio | |||
| wlc | WLV | Mwali Comorian | |||
| wle | Wolane | ||||
| wlg | WLG | Kunbarlang | |||
| wli | WLI | Waioli | |||
| wlk | WLK | Wailaki | |||
| wll | WLL | Wali (Sudan) | |||
| wlm | Middle Welsh | 中古威爾斯語 | |||
| wln | wln | wa | WLZ | Walloon | 瓦龍語、瓦隆語、華隆語 |
| wlo | WLO | Wolio | |||
| wlr | WLR | Wailapa | |||
| wls | WAL | Wallisian | 瓦利斯語 | ||
| wlu | WLU | Wuliwuli | |||
| wlv | MAD | Wichí Lhamtés Vejoz | |||
| wlw | WLW | Walak | |||
| wlx | WLX | Wali (Ghana) | |||
| wly | WLY | Waling | |||
| wma | WMA | Mawa (Nigeria) | |||
| wmb | WMB | Wambaya | |||
| wmc | WMC | Wamas | |||
| wmd | Mamaindé | ||||
| wme | TSU | Wambule | |||
| wmh | WMH | Waima'a | |||
| wmi | WMI | Wamin | |||
| wmm | WMM | Maiwa (Indonesia) | |||
| wmn | WMN | Waamwang | |||
| wmo | WMO | Wom (Papua New Guinea) | |||
| wms | WMS | Wambon | |||
| wmt | WMT | Walmajarri | |||
| wmw | WMW | Mwani | |||
| wmx | Womo | ||||
| wnb | WLN | Wanambre | |||
| wnc | WNC | Wantoat | |||
| wnd | WND | Wandarang | |||
| wne | WNE | Waneci | |||
| wng | WNG | Wanggom | |||
| wni | WNI | Ndzwani Comorian | |||
| wnk | WNK | Wanukaka | |||
| wnm | WNM | Wanggamala | |||
| wno | WNO | Wano | |||
| wnp | WNP | Wanap | |||
| wnu | WNU | Usan | |||
| woa | WOA | Tyaraity | |||
| wob | WOB | Wè Northern | |||
| woc | WOC | Wogeo | |||
| wod | WOD | Wolani | |||
| woe | WOE | Woleaian | |||
| wof | WOF | Gambian Wolof | |||
| wog | WOG | Wogamusin | |||
| woi | WOI | Kamang | |||
| wok | WOK | Longto | |||
| wol | wol | wo | WOL | Wolof | 沃洛夫語、渥魯夫語 |
| wom | WOM | Wom (Nigeria) | |||
| won | WON | Wongo | |||
| woo | WOO | Manombai | |||
| wor | WOR | Woria | |||
| wos | WOS | Hanga Hundi | |||
| wow | WOW | Wawonii | |||
| woy | WOY | Weyto | |||
| wpc | WPC | Maco | |||
| wra | WRA | Warapu | |||
| wrb | WRB | Warluwara | |||
| wrd | WRD | Warduji | |||
| wre | WRE | Ware | 此語言不存在 | ||
| wrg | WRG | Warungu | |||
| wrh | WRH | Wiradhuri | |||
| wri | WRI | Wariyangga | |||
| wrl | WRL | Warlmanpa | |||
| wrm | WRM | Warumungu | |||
| wrn | WRN | Warnang | |||
| wrp | WRP | Waropen | |||
| wrr | WRR | Wardaman | |||
| wrs | WRS | Waris | |||
| wru | WRU | Waru | |||
| wrv | WRV | Waruna | |||
| wrw | WRW | Gugu Warra | |||
| wrx | WRX | Wae Rana | |||
| wry | XMR | Merwari | |||
| wrz | WRZ | Waray (Australia) | |||
| wsa | WSA | Warembori | |||
| wsi | WSI | Wusi | |||
| wsk | WSK | Waskia | |||
| wsr | WSR | Owenia | |||
| wss | WSS | Wasa | |||
| wsu | WSU | Wasu | |||
| wsv | WSV | Wotapuri-Katarqalai | |||
| wtf | WTF | Dumpu | |||
| wti | WTI | Berta | |||
| wtk | WTK | Watakataui | |||
| wtm | XMK | Mewati | |||
| wtw | WTW | Wotu | |||
| wua | WUA | Wikngenchera | |||
| wub | WUB | Wunambal | |||
| wud | WUD | Wudu | |||
| wuh | WUH | Wutunhua | 五屯話 | ||
| wul | WUL | Silimo | |||
| wum | WUM | Wumbvu | |||
| wun | WUN | Bungu | |||
| wur | WUR | Wurrugu | |||
| wut | WUT | Wutung | |||
| wuu | WUU | Wu Chinese | 吳語 | ||
| wuv | WUV | Wuvulu-Aua | |||
| wux | WUX | Wulna | |||
| wuy | WUY | Wauyai | |||
| wwa | WWA | Waama | |||
| wwo | WWO | Wetamut | |||
| wwr | WWR | Warrwa | |||
| www | WWW | Wawa | |||
| wxa | WXA | Waxianghua | 瓦鄉話 | ||
| wya | WYA | Wyandot | |||
| wyb | WYB | Wangaaybuwan-Ngiyambaa | |||
| wym | Wymysorys | ||||
| wyr | WYR | Wayoró | |||
| wyy | WYY | Western Fijian | 西斐濟語 |
