- Aari: wóllaq
- Abaza: закӏы (zakʼə)
- Abkhaz: акы (akʼə)
- Acehnese: sa
- Adyghe: зы (zə)
- Afar: inkíttu
- Afrikaans: een (af)
- Aghwan: 𐕚𐔰 (sa)
- Ahom: 𑜎𑜢𑜤𑜂𑜫 (lüṅ)
- Ainu: シネ (sine)
- Aiton: လိုင် (lüṅ)
- Akan: baako, biakõ
- Akkadian: 𒀸 (/ištēn/), 𒁹 (/ištēn/)
- Aklanon: isaea, sambilog
- Albanian: një (sq)
- Alemannic German: eins, aas, oas
- Aleut: ataqan
- Alutiiq: (Chenega, Nanwalek, Port Graham) all'inguq, (Koniag) allringuq, allriluq
- American Sign Language: 1@Side-PalmForward, 𝠀𝪜, 1@Side-PalmBack, 𝠀
- Amharic: አንድ (am) (ʾänd) (numeral: ፩ (1))
- Amis: cecay
- Andi: себ (seb)
- Arabic: وَاحِد (ar) m (wāḥid), وَاحِدَة f (wāḥida), ١ (numeral, Eastern Arabic)
- Egyptian Arabic: واحد m (wāḥed)
- Hijazi Arabic: واحد m (wāḥid)
- Aramaic:
- Assyrian Neo-Aramaic: ܚܲܕ݇ m (ḥa), ܚܕܵܐ f (ḥdā)
- Classical Syriac: ܚܕ m (ḥaḏ), ܚܕܐ f (ḥəḏā)
- Jewish Babylonian Aramaic: חַד m (ḥaḏ), חֲדָא f (ḥăḏā)
- Turoyo: ܚܰܐ m (ḥa), ܚܕ݂ܳܐ f (ḥḏo)
- Western Neo-Aramaic: ܐܚܕ m (ʾaḥḥaḏ), ܐܚܕܐ f (ʾeḥḏaʾ)
- Arapaho: jaasaaye
- Archi: ос (os)
- Argobba: ሀንድ (hand)
- Armenian: մեկ (hy) (mek)
- Old Armenian: մի (mi)
- Aromanian: unu (roa-rup)
- Asháninka: apaani
- Assamese: এক (ek) (numeral: ১)
- Asturian: un (ast), unu (ast)
- Atong (India): sa
- Avar: цо (co)
- Avestan: 𐬀𐬉𐬬𐬀 (aēva)
- Aymara: maya (ay)
- Azerbaijani: bir (az), vahid (az)
- Bahnar: mônh
- Balinese: sa, besik, siki
- Banjarese: asa (bjn)
- Bashkir: бер (ber)
- Basque: bat (eu)
- Bassa: ɖò
- Bavarian: oans
- Bay Miwok: kenne
- Beja: gaal
- Belarusian: адзі́н (be) (adzín), адзі́нка (be) f (adzínka)
- Bemba: cimo
- Bengali: এক (bn) (ek) (numeral: ১)
- Beothuk: yaseek
- Bezhta: гьоᵸс (hõs)
- Bhojpuri: एगो (ēgō), एक (ēk)
- Bikol Central: saro (bcl)
- Binukid: sabuwa
- Bislama: wan
- Blackfoot: nĭtukskûm
- Brahui: asiŧ
- Breton: unan (br)
- Brunei Malay: satu
- Budukh: сад (sad)
- Buginese: si
- Bulgarian: едно́ (bg) n (ednó), едини́ца (bg) f (ediníca)
- Burmese: တစ် (my) (tac), ၁ (my) (numeral)
- Buryat: нэгэн (negen)
- Cabécar: etku
- Camsá: kanži
- Carpathian Rusyn: єде́н (jedén)
- Catalan: un (ca)
- Cebuano: usa, uno
- Cèmuhî: céiu
- Central Atlas Tamazight: ⵢⵓⵏ m (yun)
- Central Dusun: iso
- Central Sama: isa
- Central Tarahumara: bilé
- Ch'orti': inte'
- Chachi: main
- Chadong: jit⁷
- Chakma: please add this translation if you can
- Chamicuro: palaka
- Chamorro: unu
- Champenois: in
- Chechen: цхьаъ (cḥʳaʔ)
- Chepang: यात् (yat)
- Cherokee: ᏌᏊᎢ (saquui)
- Cheyenne: náʼėstse
- Chibcha: ata
- Chichewa: -modzi
- Chickasaw: chaffa
- Chinese:
- Cantonese: 一 (yue) (jat1)
- Dungan: йи (yi)
- Eastern Min: 一 (siŏh)
- Gan: 一 (it6)
- Hakka: 一 (yit)
- Hokkien: 一 (zh-min-nan) (chi̍t)
- Jin: 一 (ieh4)
- Mandarin: 一 (zh) (yī)
- Northern Min: 一 (cì)
- Teochew: 一 (zêg8)
- Wu: 一
- Xiang: 一 (i6)
- Chipaya: tshii
- Choctaw: ačǎfa
- Chukchi: ыннен (ynnen)
- Chuukese: et, eu, e-, echö, efoch, efou, emon
- Chuvash: пӗрре (pĕrre), пӗр (pĕr)
- Classical Nahuatl: cē
- Comanche: sʉmʉ
- Coptic: ⲟⲩⲁⲓ m (ouai) (Bohairic dialect), ⲟⲩⲁ m (oua) (Sahidic dialect)
- Cornish: un, onen, udn
- Corsican: unu (co)
- Cowlitz: ʔúc's
- Cree: peyak
- Crimean Tatar: bir
- Czech: jeden (cs) m, jedna (cs) f, jedno (cs) n, jednička (cs) f
- Dakota: wancha
- Dalmatian: join
- Danish: én (da), et (da)
- Dargwa: ца (ca)
- Dena'ina: ts'ełq'i
- Dhivehi: އެއް (ek̊)
- Dinka: tök
- Dolgan: биир (biir)
- Drehu: caas
- Dutch: één (nl), een (nl) (non-emphasized)
- Dzongkha: གཅིག (gcig)
- East Central German: aans (abstract counting), aa (counting objects)
- East Futuna: tasi
- Eastern Arrernte: anyente
- Eastern Bru: mui
- Eastern Cham: sa, ꨧ
- Eastern Katu: mui
- Eastern Mari: икыт (ikyt)
- Edo: òwó (counting), ọ́kpá
- Egyptian: (wꜥ)
- Elfdalian: ien
- Enga: mendai
- Erzya: вейке (vejke)
- Esperanto: unu (eo)
- Estonian: üks (et)
- Etruscan: 𐌈𐌖 (θu)
- Even: өмэн (ömən)
- Evenki: умӯн (umūn)
- Extremaduran: unu
- Eyak: LinhGih
- Farefare: ayɩla
- Faroese: ein (fo), eitt
- Fataluku: ukani
- Fijian: dua (fj)
- Finnish: yksi (fi)
- Fore: kánoné
- Forest Enets: ӈолю
- Fox: nekoti
- French: un (fr)
- Friulian: un
- Ga: ekome
- Gagauz: bir
- Galician: un (gl)
- Gamilaraay: maal
- Garifuna: aban
- Gaulish: oinos
- Ge'ez: አሐዱ m (ʾäḥädu), አሐቲ f (ʾäḥäti) (numeral: ፩ (1))
- Georgian: ერთი (ka) (erti)
- German: (abstract counting): eins (de), (counting objects): ein (de)
- Gilaki: یک (yek)
- Gilbertese: teuana
- Gorontalo: oinda
- Gothic: 𐌰𐌹𐌽𐍃 (ains)
- Greek: ένα (el) (éna)
- Ancient: εἷς m (heîs), α΄ (numeral)
- Mycenaean: 𐀁𐀕 (e-me /hemei/) (dative)
- Greenlandic: ataaseq (kl)
- Guaraní: peteĩ
- Gujarati: એક (gu) (eka) (numeral: ૧)
- Gusii: eyemo
- Gutnish: ajn
- Hadza: itchâme m, itchâmeko f
- Haida: sgoansiñ, sgwáansang
- Haitian Creole: en, youn
- Hausa: ɗaya (ha)
- Hawaiian: ʻekahi, kahi
- Hebrew: אַחַת (he) f (akhát) (used in counting), אֶחָד (he) m (ekhád)
- Higaonon: sabuwa
- Hiligaynon: isa
- Hindi: एक (hi) (ek) (numeral: १), इक (hi) (ik)
- Hiri Motu: ta
- Hlai: ceuus, zuu
- Hopi: suukyaʼ
- Hunde: -ûma
- Hungarian: egy (hu)
- Hupa: łaˀ
- Ibanag: tadday
- Icelandic: einn (is)
- Ido: un (io)
- Ifè: ɔ̀kã, ɛnɛ́, -kã̀ (adjectival)
- Igala: òókáà, ényẹ́
- Igbo: otu (ig), ótu (ig)
- Indonesian: satu (id)
- Ingrian: yks
- Interlingua: un (ia)
- Inuktitut: ᐊᑕᐅᓯᖅ (ataosiq)
- Inupiaq: atausriq, atausiq
- Iranun: isa
- Iraqw: wak
- Iriga Bicolano: əsad
- Irish: aon (ga), amháin (ga)
- Old Irish: óen
- Isnag: isa
- Isoko: ọvụ
- Istro-Romanian: ur
- Italian: uno (it)
- Itsekiri: ọ̀kan
- Iu Mien: yietv
- Izon: kẹnị́, gbọ́rụ
- Jakaltek: hune'
- Japanese: 一 (ja) (ichi), 一つ (ja) (hitotsu), ワン (ja) (wan)
- Jarai: sa
- Javanese: (Ngoko) siji (jv), sitok (jv), (Krama) setunggal
- Jeju: ᄒᆞ나 (hawna), ᄒᆞᆫ (hawn) (determiner), 일 (il)
- Kabardian: зы (kbd) (zə)
- Kabuverdianu: un
- Kabyle: yiwen
- Kalmyk: негн (negn)
- Kambaata: máto
- Kannada: ಒಂದು (kn) (ondu)
- Kanuri: tilo, fal
- Kapampangan: metung
- Karachay-Balkar: бир (bir)
- Karaim: bir
- Karajá: sohoji
- Karakhanid: بٖيرْ (bīr)
- Karelian: yksi
- Kari'na: òwin
- Kashubian: jeden m
- Kaurna: kuma
- Kazakh: бір (kk) (bır)
- Khakas: пір (pìr)
- Khamti: please add this translation if you can
- Khiamniungan Naga: tsāk
- Khinalug: са (sa)
- Khmer: មួយ (km) (muəy), ១ (km) (numeral)
- Khoekhoe: ǀgui
- Khün: ᩑᨠ
- Kinaray-a: sara, isara
- Klallam: nə́c̕uʔ
- Komi-Permyak: ӧ́тік (ö́tik)
- Komi-Zyrian: ӧті (öti)
- Kongo: mosi
- Korean: 하나 (ko) (hana), 한 (ko) (han) (adjective), 일(一) (ko) (il), 원 (ko) (won)
- Kurdish:
- Central Kurdish: یەک (yek)
- Northern Kurdish: yek (ku), êk (ku)
- Kyrgyz: бир (ky) (bir)
- Ladakhi: གཅིག (gcig)
- Ladin: please add this translation if you can
- Ladino:
- Hebrew: אונו m
- Roman: uno m, una f
- Lak: ца (ca)
- Lakota: waŋží, wanca
- Lao: ໜຶ່ງ (nưng) (numeral: ໑)
- Latgalian: vīns
- Latin: ūnus (la) m, ūna (la) f, ūnum n
- Latvian: viens (lv), (Latgalian) vīns (lv), viena
- Laurentian: segada
- Lutuv: suokha
- Leonese: ún
- Lezgi: сад (sad)
- Ligurian: ûn
- Limburgish: ein (li)
- Lingala: mɔ̌kɔ́
- Linngithigh: pim
- Lithuanian: vienas (lt) m, viena (lt) f
- Livonian: ikš
- Livvi: yksi
- Lombard: vun (lmo) m, vuna (lmo) f, jun m, juna f
- Louisiana Creole French: un, in, unn, ènn
- Low German:
- German Low German: een (nds), ein
- Lü: ᦓᦹᧂᧈ (nueng¹) (numeral: ᧑)
- Lucumí: eni, okán, kan (adjectival)
- Luganda: emu
- Luhya: ndala
- Lushootseed: dəč'uʔ
- Luxembourgish: een (lb)
- Maasai: nabo
- Macedonian: еден (mk) (eden)
- Madurese: settoŋ
- Maguindanao: isa
- Maharastri Prakrit: ऍक्क
- Makasae: u
- Makasar: si
- Malagasy: iray (mg)
- Malawi Lomwe: -modda
- Malay:
- Jawi: ساتو (ms), اسا, س, توڠݢل, ايک, احد, واحد
- Rumi: satu (ms), esa (ms), se (ms), tunggal (ms), eka, ahad, wahid
- Malayalam: ഒന്നു (onnu), ഒന്നു് (onnŭŭ) (numeral: ൧)
- Maltese: wieħed (mt), waħda (mt) f
- Manchu: ᡝᠮᡠ (emu)
- Mangarevan: tahi
- Mansaka: isa
- Manx: 'nane, un, unnane
- Maore Comorian: moja
- Maori: tahi (mi)
- Mapudungun: kiñe
- Maranao: isa
- Marathi: एक (mr) (ek) (numeral: १)
- Maricopa: cendig, shent
- Marshallese: juon
- Marwari: एक (ek)
- Mauritian Creole: enn
- Mazanderani: یک
- Mbyá Guaraní: peteĩ
- Mi'kmaq: nāookt
- Middle English: oon
- Mirandese: un
- Miwok:
- Coast Miwok: kénne
- Lake Miwok: kénne
- Mizo: pa-khat
- Mòcheno: oa's
- Mochica: onäk
- Mohawk: énska
- Molbog: sombiluq
- Mon: မွဲ (mwaj)
- Mongolian:
- Classical Mongolian: ᠨᠢᠭᠡᠨ (nigen)
- Cyrillic: нэг (mn) (neg)
- Mongolian: ᠨᠢᠭᠡ (nige), ᠑ (1) (numeral)
- Montagnais: peikᵘ
- Motu: tamona
- Mundari: mid
- Mundurukú: pĩ̵g̃
- Muong: môch
- Murui Huitoto: da-
- Mwani: kimoja
- Nahali: bidum
- Nahuatl: ce (nah)
- Nanai: эмун (emun)
- Nauruan: aiquen
- Navajo: łáaʼii, tʼááłáʼí
- Neapolitan: nu (apulian)
- Nengone: sa
- Nepali: एक (ne) (ek) (numeral: १)
- Ngarrindjeri: jammelai
- Ngazidja Comorian: -dzima
- Nheengatu: iepé
- Nigerian Pidgin: wọ́n, one (English-based orthography)
- Niuean: taha
- Nivkh: нин (ņin)
- Norman: un (Jersey), iun (Guernsey)
- North Frisian:
- Föhr-Amrum: een m, ian f or n
- Helgoland: iaan, jaan
- Mooring: ån m, iinj f or n
- Sylt: jen
- Northern Khanty: и (i) (Kazym), (please verify) йи (ji) (Kazym), (please verify) ит (it) (Kazym)
- Northern Mansi: (please verify) аква (akva)
- Northern Sotho: tee (Sepedi)
- Northern Thai: ᨶᩧ᩠᩵ᨦ
- Norwegian:
- Bokmål: én (no), ett (no)
- Nynorsk: éin (nn), éi (nn), eitt
- Nuosu: ꋍ (cyp)
- Nǀuu: ǁʻoe
- Nǁng: ǁweː
- O'odham: hemako
- Occitan: un (oc), iva (oc) (Gascon)
- Odia: ଏକ (eka) (numeral: ୧ (1))
- Ojibwe: bezhig
- Okinawan: 一 (てぃー, tī) (when counting), 一 (いち, ichi), 一ち (tīchi, fituchi)
- Old Church Slavonic:
- Cyrillic: ѥдинъ (jedinŭ) (numeral: а҃)
- Old English: ān
- Old Frisian: ēn
- Old Javanese: tunggal
- Old Korean: 一等 (*HAton)
- Old Norse: einn
- Old Nubian: ouer-
- Old Prussian: ains
- Old Tupi: oîepé
- Old Turkic: 𐰋𐰃𐰼 (b²ir²)
- Olukumi: ọ̀kan
- Orok: ге̄да (gēda)
- Oromo: tokko (om)
- Oscan: 𐌖𐌉𐌍𐌖𐌔 (uinus)
- Ossetian: иу (iw)
- Ottoman Turkish: بر (bir), یك (yek)
- Paicî: êrêcaa
- Paiwan: ita
- Pali: eka
- Pangasinan: sakey
- Pannonian Rusyn: єден (jeden)
- Papiamentu: unu
- Pashto: یو (yaw)
- Pawnee: asku
- Pela: ta³¹
- Pennsylvania German: eens
- Persian:
- Old Persian: 𐎠𐎡𐎺 (a-i-v /aiva/), (please verify) [Term?] (/aivaka/)
- Dari: یَک (yak), ١ (numeral)
- Iranian Persian: یِک (yek), ١ (numeral)
- Phake: please add this translation if you can
- Picard: un, in, eune
- Piedmontese: un
- Pijin: wan
- Pipil: se, ce
- Polabian: jadån
- Polish: jeden (pl), jedynka (pl) f
- Portuguese: um (pt) m
- Punic: 𐤀𐤇𐤃 (ʾḥd)
- Punjabi:
- Gurmukhi: ਇੱਕ (pa) (ikka), ੧ (pa) (numeral)
- Puyuma: sa
- Quechua: huk (qu), juk
- Rabha: ছা
- Rakhine: please add this translation if you can
- Rapa Nui: ka tahi
- Rarotongan: taʼi
- Rohingya: ek
- Romagnol: un
- Romani: jekh
- Kalo Finnish Romani: iek
- Romanian: unu (ro), una
- Cyrillic: уну (unu)
- Romansch: in
- Roviana: keke
- Russian: оди́н (ru) m (odín), одна́ (ru) f (odná), одно́ (ru) n (odnó), раз (ru) (raz) (when counting), едини́ца (ru) f (jediníca)
- Rwanda-Rundi: rimwe
- S'gaw Karen: တ (ta), တၢ (tuh)
- Saho: inik
- Sami:
- Inari: ohtâ
- Northern: okta
- Skolt: õhtt
- Southern: akte
- Samoan: tasi (sm), asi
- Samogitian: vėins m
- Sanskrit: एक (sa) (eka)
- Santali: ᱮᱠᱚ (ekô), ᱢᱤᱫ (mit’)
- Sarcee: tłìk'azá
- Sardinian: unu
- Sarikoli: iw
- Saterland Frisian: een
- Sauraseni Prakrit: ऍक्क
- Scots: ane (numerical; when counting), ae (adjective; used before a noun)
- Scottish Gaelic: aon, (one person) aonar m, (one item) aonan m
- Selk'nam: sos
- Serbo-Croatian:
- Cyrillic: јѐдан
- Roman: jèdan (sh)
- Shan: ၼိုင်ႈ (shn) (nūeng) (numeral: ႑)
- Shelta: ain, awárt
- Sherpa: གཅིག (gcig)
- Shipibo-Conibo: huestiora
- Shona: poshi
- Shughni: jiw
- Sicilian: unu (scn)
- Sidamo: mitte
- Sikkimese: ཅི (ci)
- Sindhi: هڪ (sd) (hik)
- Sinhalese: එක (si) (eka)
- Slovak: jeden (sk)
- Slovene: èn (sl), (when not modifying a noun) êden, (when counting) êna (sl)
- Slovincian: jëden
- Somali: kow (so), mid (so), hal (so)
- Soninke: bàanè
- Sorbian:
- Lower Sorbian: jaden m, jadna f, jadno n
- Upper Sorbian: jedyn m, jena f, jene n
- Sotho: nngwe (st)
- Southern Ohlone: hemetscha
- Southern Sama: issa
- Southern Thai: please add this translation if you can
- Spanish: uno (es)
- Old Spanish: vno
- Sranan Tongo: wan
- Sumerian: 𒁹 (diš)
- Sundanese: hiji (su)
- Swabian: oe, oas, ois
- Swahili: moja (sw)
- Swazi: -nyé
- Swedish: (abstract counting): ett (sv), (counting objects): ett (sv) n, en (sv) c
- Sylheti: ꠄꠇ (ex)
- Tabasaran: саб (sab)
- Tachawit: yicht
- Tagalog: isa (tl), uno (tl)
- Tahitian: hō'ē
- Tahltan: łige
- Tai Dam: ꪙꪳ꪿ꪉ
- Tai Laing: လိူင်
- Tai Nüa: ᥘᥫᥒ (loeng)
- Taíno: hekiti, aba
- Tajik: як (tg) (yak)
- Talysh: i
- Tamil: ஒன்று (ta) (oṉṟu)
- Tangsa: äshiz
- Tarantino: une
- Tashelhit: yan m, yat f
- Tat: yə
- Tatar: бер (tt) (ber)
- Tausug: hambuuk, isa
- Tày: đều, đeo, ất, ết
- Telugu: ఒకటి (te) (okaṭi)
- Ternate: rimoi
- Tetum: ida
- Thai: หนึ่ง (th) (nʉ̀ng), ๑ (th) (1) (numeral)
- Tibetan: གཅིག (gcig)
- Tidore: rimoi
- Tigre: ዎሮት m (worot), ዎሮ m (woro), ሐቴ f (ḥäte) (numeral: ፩ (1))
- Tigrinya: ሓደ (ti) m (ḥadä) (numeral: ፩)
- Tlingit: tléixʼ
- Tocharian A: sas
- Tocharian B: ṣe
- Tok Pisin: wanpela (tpi)
- Tokelauan: tahi
- Tongan: taha
- Tooro: -mu, emu (abstract counting)
- Tsafiki: mã, mãka
- Tswana: ngwe
- Tumbuka: moza
- Tupinambá: îepé, oîepé
- Turkish: bir (tr)
- Turkmen: bir (tk)
- Tuvaluan: tahi, tasi
- Tuvan: бир (bir)
- Tz'utujil: jun
- Udi: са (sa)
- Udmurt: одӥг (odig)
- Ukrainian: оди́н (uk) (odýn), одини́ця (uk) f (odynýcja)
- Umbrian: 𐌖𐌍𐌔 (uns)
- Umbundu: mosi
- Unami: kwëti
- Urarina: leinji̡į
- Urdu: ایک (ur) (ek), (numeral) ١
- Uyghur: بىر (ug) (bir)
- Uzbek: bir (uz)
- Venetan: uno (vec)
- Ventureño: pake'et
- Veps: üks'
- Vietnamese: một (vi)
- Vili: mueke
- Volapük: bal (vo)
- Võro: ütś
- Votic: ühs, ühsi
- Wakhi: yiw
- Wallisian: tahi
- Walloon: onk (wa)
- Waray-Waray: u-sa, sa-yu
- Warlpiri: cinta
- Wauja: pawã
- Wayuu: wane
- Welsh: un (cy)
- West Frisian: ien (fy)
- Western Apache: dałaá
- Western Bukidnon Manobo: isa
- Western Cham: please add this translation if you can
- White Hmong: ib
- Winnebago: hižąkiira, hižąkira
- Wiradjuri: ngumbaay
- Woiwurrung: ganbu
- Written Oirat: ᠨᡅᡎᡄᠨ (nigen)
- Xârâcùù: chaa
- Xavante: mitsi
- Xhosa: inye, nye
- Yagnobi: ӣ (i)
- Yakan: issa'
- Yakut: биир (biir)
- Yámana: koli
- Yao: mo
- Yiddish: איינס (eyns)
- Yogad: tatá
- Yoruba: ọ̀kan, oókan, ení, kan (adjectival)
- Yucatec Maya: hun
- Yuchi: hitʼɛ
- Yup'ik: atauciq
- Zaghawa: nî
- Zande: sa
- Zapotec: to
- Zazaki: yu, yew (diq), jew (diq), ju
- Zealandic: eên (attributive), eêne (in counting)
- Zhuang: it (Sawndip: 一), ndeu
- Zou: khet
- Zulu: nye, dwa
- Zuni: dobinde
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