- Albanian: pagjumësi (sq) f
- Arabic: أَرَق m (ʾaraq)
- Armenian: անքնություն (hy) (ankʿnutʿyun)
- Aromanian: nisomn n
- Assyrian Neo-Aramaic: ܥܲܣܩܘܼܬ ܕܡܵܟ݂ܵܐ f (ʿasqut dmāḵā)
- Asturian: vela (ast) f, velea f
- Azerbaijani: yuxusuzluq (az)
- Belarusian: бяссо́нніца f (bjassónnica), бе́ссань f (bjéssanʹ)
- Bengali: অনিদ্রা (bn) (ônidra)
- Bulgarian: безсъ́ние (bg) n (bezsǎ́nie)
- Burmese: please add this translation if you can
- Catalan: insomni m
- Chinese:
- Cantonese: 失眠 (sat1 min4), 失眠症 (sat1 min4 zing3)
- Hakka: 失眠 (sṳt-min)
- Mandarin: 失眠 (zh) (shīmián)
- Min Nan: 失眠 (zh-min-nan) (sit-bîn), 無眠 (zh-min-nan), 无眠 (bô-bîn)
- Czech: nespavost f
- Danish: søvnløshed (da) c
- Dutch: slapeloosheid (nl) f
- Esperanto: sendormeco
- Estonian: unetus
- Faroese: andvekur m, svøvnloysi n
- Finnish: unettomuus (fi)
- French: insomnie (fr) f
- Galician: insomnio (gl) m
- Georgian: უძილობა (uʒiloba)
- German: Schlaflosigkeit (de) f
- Greek: αϋπνία (el) f (aÿpnía)
- Ancient Greek: ἀγρυπνίᾱ f (agrupníā), ἀϋπνία f (aüpnía)
- Gujarati: અનિદ્રા (anidrā)
- Hebrew: נְדוּדֵי שֵׁנָה (he)
- Hindi: अनिद्रा (hi) f (anidrā)
- Hungarian: álmatlanság (hu)
- Icelandic: svefnleysi (is) n, andvaka (is) f
- Irish: neamhchodladh m, neamhshuan m, díth codlata f
- Italian: insonnia (it) f
- Japanese: 不眠 (ja) (ふみん, fumin), 不眠症 (ふみんしょう, fuminshō)
- Kazakh: ұйқысыздық (ūiqysyzdyq)
- Khmer: អនិទ្រា (km) (ʼaʼnɨttriə)
- Korean: 불면증(不眠症) (ko) (bulmyeonjeung)
- Kyrgyz: уйкусуздук (uykusuzduk)
- Latin: insomnia f, insomnietās f
- Latvian: bezmiegs m
- Lithuanian: nemiga f
- Macedonian: несоница f (nesonica)
- Malay: insomnia
- Manx: neuchadlaght f, neuchadley m, neuchadlys m
- Norwegian:
- Bokmål: søvnløshet m or f, søvnløyse m or f
- Nynorsk: søvnløyse f
- Occitan: insomnia f
- Old English: slǣplīest f
- Pali: anidrā
- Persian: بیخوابی (fa) (bi-xâbi)
- Polish: bezsenność (pl) f
- Portuguese: insónia (pt) f, (Brazil) insônia (pt) f
- Punjabi: ਅਨੀਂਦਰਾ (pa) m (anīndrā)
- Romanian: insomnie (ro) f, nesomn (ro) n
- Russian: бессо́нница (ru) f (bessónnica), инсомни́я (ru) f (insomníja)
- Sanskrit: अनिद्रा (sa) (anidrā)
- Scottish Gaelic: bacadh-cadail m
- Serbo-Croatian:
- Cyrillic: нѐсаница f, бѐсаница f, инсо̀мнија f
- Roman: nèsanica (sh) f, bèsanica (sh) f, insòmnija (sh) f
- Slovak: nespavosť f
- Slovene: nespéčnost f
- Spanish: insomnio (es) m
- Swedish: insomni, sömnlöshet (sv)
- Tajik: бедорхобӣ (bedorxobī), бехобӣ (bexobī), камхобӣ (kamxobī)
- Tatar: йокысызлык (tt) (yoqısızlıq)
- Telugu: నిద్రలేమి (te) (nidralēmi)
- Thai: โรคนอนไม่หลับ (rôok-nɔɔn-mâi-lòp)
- Turkish: uykusuzluk (tr)
- Turkmen: ukusyzlyk
- Ukrainian: безсо́ння (uk) n (bezsónnja)
- Urdu: بے خوابی f (be xvābī)
- Uyghur: ئۇيقۇسىزلىق (uyqusizliq)
- Uzbek: uyqusizlik (uz)
- Vietnamese: mất ngủ (vi) (𠅎㬳)
- Volapük: please add this translation if you can
- Welsh: anhunedd m
- Yiddish: שלאָפֿלאָזיקייט f (shloflozikeyt)
- Yoruba: àìróorunsùn
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