- Afrikaans: negentig (af)
- Albanian: nëntëdhjetë (sq)
- American Sign Language:

- Arabic: تِسْعِينَ (tisʿīna), (only nominative, formal) تِسْعُونَ (tisʿūna)
- Egyptian Arabic: تسعين (tisʿīn)
- Aramaic:
- Hebrew: תשעין c (teshʿīn)
- Syriac: ܬܫܥܝܢ c (teshʿīn)
- Armenian: իննսուն (hy) (innsun)
- Aromanian: noauãdzãts, noauãdzãtsi, noauãdzãtsã
- Asturian: noventa (ast)
- Azerbaijani: doxsan (az)
- Bashkir: туҡһан (tuqhan)
- Basque: laurogeita hamar (eu)
- Belarusian: дзевяно́ста (dzjevjanósta), дзе́вяцьдзесят (dzjévjacʹdzjesjat)
- Bengali: নব্বই (nôbbôi)
- Breton: dek ha pevar-ugent
- Bulgarian: деветдесе́т (devetdesét)
- Burmese: ကိုးဆယ် (kui:hcai)
- Catalan: noranta (ca)
- Central Dusun: siam nohopod
- Chechen: дезткъе итт (deztqʼe itt)
- Cherokee: ᏐᏁᎳᏍᎪᎯ (sonelasgohi)
- Chichewa: makumi asanu ndianayi
- Chinese:
- Mandarin: 九十 (zh) (jiǔshí)
- Wu: 九十 (ciéu zoep)
- Crimean Tatar: doqsan
- Czech: devadesát (cs)
- Danish: halvfems (da)
- Dhivehi: ނަވައި (navai), ނުވަދިހަ (nuvadiha)
- Dutch: negentig (nl) f
- Esperanto: naŭdek (eo)
- Estonian: üheksakümmend (et)
- Fijian: ciwasagavulu
- Finnish: yhdeksänkymmentä (fi)
- French:
- (Belgium, Switzerland, Congo-Kinshasa, Rwanda) nonante (fr)
- (France, Canada, former French colonies) quatre-vingt-dix (fr)
- Friulian: nonante
- Galician: noventa (gl)
- Georgian: ოთხმოცდაათი (otxmocdaati)
- German: neunzig (de) f
- Alemannic German: nüünzg
- Gothic: 𐌽𐌹𐌿𐌽𐍄𐌰𐌹𐌷𐌿𐌽 (niuntaihun)
- Greek: ενενήντα (el) (enenínta)
- Hausa: casa'in, tis'in
- Hawaiian: kanaiwa
- Hebrew: תִּשְׁעִים m or f (tishʿím)
- Hindi: नब्बे (hi) (nabbe), नव्वे (navve)
- Hungarian: kilencven (hu)
- Ido: nonadek (io)
- Indonesian: sembilan puluh
- Interlingua: novanta
- Irish: nócha (ga)
- Italian: novanta (it)
- Japanese: 九十 (ja) (きゅうじゅう, kyūjū, くじゅう, kujū)
- Karachay-Balkar: Lua грешка in Модул:languages/doSubstitutions at line 75: Substitution data 'krc-translit' does not match an existing module..
- Kazakh: тоқсан (kk) (toqsan)
- Khmer: កៅសិប (km) (kawsəp)
- Komi-Permyak: ӧкмысдас (ökmysdas)
- Korean: 구십 (ko) (gusip) (九十 (ko)), 아흔 (ko) (aheun)
- Kurdish: Lua грешка in Модул:languages/errorGetBy at line 14: The language or etymology language code "ku" in the first parameter is not valid (see Wiktionary:List of languages).., Lua грешка in Модул:languages/errorGetBy at line 14: The language or etymology language code "ku" in the first parameter is not valid (see Wiktionary:List of languages).., Lua грешка in Модул:languages/errorGetBy at line 14: The language or etymology language code "ku" in the first parameter is not valid (see Wiktionary:List of languages).., Lua грешка in Модул:languages/errorGetBy at line 14: The language or etymology language code "ku" in the first parameter is not valid (see Wiktionary:List of languages)..
- Kyrgyz: токсон (ky) (tokson)
- Ladin: nonanta
- Lakota: wikčémna napčíyuŋka
- Lao: ເກົ້າສິບ (kao sip)
- Latin: nonaginta
- Latvian: deviņdesmit (lv)
- Lithuanian: devyniasdešimt (lt)
- Livonian: īdõkskimdõ
- Low German:
- German Low German: niëgentig (nds) (Münsterland)
- Luxembourgish: nonzeg
- Macedonian: деведесет (devedeset)
- Malay: sembilan puluh
- Maltese: disgħin
- Mansi: Lua грешка in Модул:languages/doSubstitutions at line 75: Substitution data 'mns-translit' does not match an existing module..
- Manx: kiare feed as jeig
- Maore Comorian: tuswini
- Maori: iwa tekau (mi)
- Mongolian: ер (mn) (jer)
- Nauruan: aduma
- Navajo: náhástʼédiin
- Norman: nénante
- Northern Sami: молим додајте овај превод ако можете
- Norwegian: nitti (no)
- Novial: Lua грешка in Модул:translations at line 84: Translations must be for attested and approved main-namespace languages..
- Occitan: nonanta (oc)
- Ojibwe: zhaangasimidana
- Old Church Slavonic: девѧть десѧтъ (devętĭ desętŭ)
- Persian: نَوَد (fa) (navad)
- Polish: dziewięćdziesiąt (pl)
- Portuguese: noventa (pt)
- Quechua: isqun chunka
- Romanian: nouăzeci (ro)
- Romansch: novanta, navonta, novànta, nonaunta
- Russian: девяно́сто (ru) (devjanósto)
- Samoan: ivasefulu
- Sanskrit: नवति (sa) (navatí)
- Sardinian: nobanta, nonanta, noranta
- Scottish Gaelic: (old system) ceithir fichead 's a deich, (new system) naochad
- Serbo-Croatian:
- Cyrillic: деведесет
- Roman: devedeset
- Shan: ၵဝ်ႈသိပ်း (kāw síp)
- Sicilian: novanta (scn)
- Sinhalese: අනූව (anūva)
- Slovak: devätdesiat
- Slovene: devetdeset (sl)
- Southern Altai: тогузон (toguzon)
- Spanish: noventa (es)
- Swahili: tisini (sw)
- Swedish: nittio (sv)
- Tagalog: siyamnapu
- Tahitian: iva 'ahuru
- Tajik: навад (tg) (navad)
- Tatar: туксан (tt) (tuqsan)
- Telugu: తొంభై (tombhai)
- Thai: เก้าสิบ
- Tibetan: དགུ་བཅུ (dgu bcu)
- Tongan: hivangofulu
- Turkish: doksan (tr)
- Turkmen: togsan (tk)
- Udmurt: укмыстон (ukmyston)
- Ukrainian: дев'яно́сто (uk) (devʺjanósto)
- Unami: pèshkunk txinxke
- Urdu: نوے (navve)
- Uzbek: toʻqson (uz)
- Venetian: nonanta (vec)
- Vietnamese: chín mươi
- Volapük: züldeg (vo)
- Walloon: nonante (wa)
- Welsh: deg ar pedwar ugain (vigesimal, traditional), naw deg (cy) (decimal)
- West Frisian: njoggentich
- Yiddish: נײַנציק (nayntsik)
- Yup'ik: yuinaat cetaman qula
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