- Afrikaans: verraaier
- Albanian: tradhtar (sq) m
- Arabic: خَائِن m (ḵāʔin), خَائِنَة f (ḵāʔina), غَدَّار m (ḡaddār), غَدَّارَة f (ḡaddāra)
- Aramaic: ܡܫܠܡܢܐ m
- Armenian: դավաճան (hy) (davačan)
- Azerbaijani: satqın, xain (az)
- Basque: saltzaile
- Belarusian: здра́днік m (zdrádnik), здра́дніца f (zdrádnica)
- Bengali: গদ্দার (bn) (goddar)
- Breton: treitour (br) m, treitourez f
- Bulgarian: преда́тел (bg) m (predátel), преда́телка f (predátelka), изме́нник (bg) m (izménnik), изме́нничка f (izménnička), изме́нница f (izménnica)
- Catalan: traïdor (ca) m, traïdora (ca) f
- Chechen: please add this translation if you can
- Chinese:
- Mandarin: 叛徒 (zh) (pàntú), 賣國賊/卖国贼 (zh) (màiguózéi), 背叛者 (zh) (bèipànzhě), 國賊/国贼 (zh) (guózéi)
- Cornish: traytour m, traytoures f
- Crimean Tatar: please add this translation if you can
- Czech: zrádce (cs) m, zrádkyně (cs) f, vlastizrádce m, vlastizrádkyně f, velezrádce m, velezrádkyně f
- Danish: forræder c
- Dutch: verrader (nl) m, verraadster (nl) f, overloper (nl) m, overloopster f, trouweloze (nl) c
- Esperanto: perfidulo, perfidulino (female)
- Estonian: reetur, äraandja
- Finnish: maanpetturi, petturi (fi)
- French: traître (fr) m, traîtresse (fr) f
- Galician: treidor m, catralvo m, turdio m, tredo m, aleive m, ransoño m, suiño m
- Georgian: მოღალატე (moɣalaṭe)
- German: Verräter (de) m, Verräterin (de) f,
- Greek: προδότης (el) m (prodótis), δοσίλογος (el) m (dosílogos)
- Ancient: προδότης m (prodótēs), προδότις f (prodótis)
- Haitian Creole: trèt
- Hebrew: בּוֹגֵד (he) m (bogéd)
- Hindi: ग़द्दार m (ġaddār), द्रोही (hi) f (drohī), विद्रोही (hi) f (vidrohī), देशद्रोही (hi) (deśadrohī)
- Hungarian: áruló (hu)
- Icelandic: svikari m
- Ido: trahizanto (io), trahizinto, trahizero (io), trahizemo
- Indonesian: pengkhianat (id)
- Irish: (please verify) fealltóir m, (please verify) tréatúir m
- Italian: traditore (it) m, traditrice (it) f, voltagabbana (it) m or f, banderuola (it) f, giravolta (it) f, proditore m, proditrice f
- Japanese: 売国奴 (ja) (ばいこくど, baikokudo), 非国民 (ja) (ひこくみん, hikokumin), 国賊 (ja) (こくぞく, kokuzoku), 反逆者 (ja) (はんぎゃくしゃ, hangyakusha), 裏切り者 (ja) (うらぎりもの, uragirimono)
- Kazakh: сатқын (satqyn)
- Khmer: អ្នកក្បត់ (nĕək kbɑt)
- Korean: 배반자(背反者) (ko) (baebanja), 매국노(賣國奴) (ko) (maegungno)
- Kyrgyz: чыккынчы (ky) (cıkkıncı)
- Lao: ຜູ້ທໍລະຍົດ (phū thǭ la nyot)
- Latin: trāditor m, trāditrīx f, prōditōr m, prōditrīx f
- Latvian: nodevējs m, nodevēja f
- Lithuanian: išdavikas m, išdavikė f
- Macedonian: предавник m (predavnik), предавничка f (predavnička), издајник m (izdajnik), издајничка f (izdajnička)
- Malay: pembelot, penderhaka, pengkhianat
- Malayalam: ഒറ്റുകാരൻ (ml) m (oṟṟukāraṉ)
- Maori: kaikaiwaiū
- Mongolian:
- Cyrillic: урвагч (mn) (urvagč)
- Nepali: देशद्रोही (deśdrohī), गद्दार (ne) (gaddār)
- Norwegian:
- Bokmål: sviker (no) m, forræder (no)
- Nynorsk: svikar m, forrædar (nn) m
- Occitan: traïdor (oc) m, traïdoira f, traite (oc) m, traita f
- Old English: lǣwa m
- Pashto: خاين (ps) m (xāyen), غدار (ps) m (ǧadār)
- Persian: خائن (fa) (xâ'en), غدار (fa) (ğaddâr), خیانتکار (xiyânat-kâr)
- Polish: zdrajca (pl) m, zdrajczyni (pl) f, zaprzaniec (pl) m, sprzedawczyk (pl) m, konfident (pl)
- Portuguese: traidor (pt), traidora f
- Romanian: trădător (ro) m, trădătoare (ro) f
- Russian: преда́тель (ru) m (predátelʹ), преда́тельница (ru) f (predátelʹnica), изме́нник (ru) m (izménnik), изме́нница (ru) f (izménnica)
- Sanskrit: पक्षहर (sa) m (pakṣahara), द्रोहप्रवेशक m (drohapraveśaka), राजद्रोही m (rājadrohī)
- Scottish Gaelic: (please verify) truthair, * Scottish Gaelic: brathadair m
- Serbo-Croatian:
- Cyrillic: ѝзда̄јнӣк m, ѝздајица f, ѝзда̄јница f
- Roman: ìzdājnīk (sh) m, ìzdajica (sh) f, ìzdājnica f
- Slovak: zradca m, zradkyňa f
- Slovene: izdajalec (sl) m, izdajalka f
- Spanish: traidor (es) m, traidora (es) f, serpiente (es) m or f (figurative)
- Swedish: förrädare (sv) c, quisling (sv) c
- Tajik: хоин (xoyin), хиёнаткор (xiyonatkor), хиёнатгар (xiyonatgar)
- Tamil: துரோகி (ta) (turōki), தேசத்துரோகி (tēcatturōki)
- Telugu: ద్రోహి (te) (drōhi), దేశద్రోహి (te) (dēśadrōhi)
- Thai: กบฏ (th) (gà-bòt), ผู้ทรยศ (pûu-tɔɔ-rá-yót), คนทรยศ (kon tɔɔ-rá-yót)
- Turkish: hain (tr), sadakâtsiz, satkın (tr)
- Turkmen: haýyn
- Ukrainian: зра́дник m (zrádnyk), зра́дниця f (zrádnycja)
- Urdu: غدار m (ġaddār)
- Uyghur: خائىن (xa'in), ساتقىن (satqin)
- Uzbek: xoin (uz), sotqin (uz), xiyonatchi (uz), xiyonatkor (uz)
- Vietnamese: kẻ phản bội
- Walloon: traite (wa) m or f
- Welsh: bradwr m
- Yiddish: פֿאַררעטער (yi) m (farreter)
- Zazaki: xayın c, ğedar c
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