- Afrikaans: sluipmoordenaar
- Albanian: please add this translation if you can
- Arabic: قَاتِل (ar) m (qātil), سَفَّاح m (saffāḥ), سَفَّاك m (saffāk), مُغْتَال m (muḡtāl)
- Armenian: մարդասպան (hy) (mardaspan)
- Belarusian: наёмны забо́йца m (najómny zabójca)
- Bulgarian: уби́ец (bg) m (ubíec), уби́йца f (ubíjca), терори́ст m (teroríst), терори́стка f (terorístka), нае́мен уби́ец m (naémen ubíec)
- Catalan: assassí (ca) m, assassina (ca) f
- Chinese:
- Mandarin: 刺客 (zh) (cìkè), 凶手 (zh) (xiōngshǒu)
- Czech: atentátník (cs) m, atentátnice (cs) f
- Danish: snigmorder c, snigmorderske c, attentatmand c, attentatkvinde c, lønmorder c
- Dutch: sluipmoordenaar (nl) m, sluipmoordenares f, huurmoordenaar (nl) m, huurmoordenares f
- Esperanto: murdinto, murdintino (female)
- Estonian: palgamõrvar
- Faroese: slysdrápsmaður m
- Finnish: salamurhaaja (fi)
- French: assassin (fr) m, assassine (fr) f
- Friulian: sassin m
- Galician: asasino (gl) m, asasina f
- Georgian: კილერი (ḳileri), დაქირავებული მკვლელი (dakiravebuli mḳvleli)
- German: Attentäter (de) m, Attentäterin (de) f, Mörder (de) m, Mörderin (de) f
- Greek: δολοφόνος (el) m or f (dolofónos)
- Hebrew: מִתְנַקֵּשׁ m (mitnakésh), מִתְנַקֶּשֶׁת f (mitnakéshet)
- Hindi: छलघाती (chalghātī), गुप्तघाती (guptaghātī), हत्यारा (hi) (hatyārā), गरकट (garkaṭ)
- Hungarian: bérgyilkos (hu)
- Icelandic: launmorðingi m
- Irish: feallmharfóir m
- Italian: assassino (it) m, assassina (it) f
- Japanese: 暗殺者 (あんさつしゃ, ansatsusha), 刺客 (ja) (しきゃく, shikyaku), キラー (ja) (kirā)
- Khmer: ឃាតករ (khiət kɑɑ)
- Korean: 암살자 (amsalja), 자객 (ko) (jagaek)
- Kurdish:
- Northern Kurdish: suîqestker (ku), mirovkuj (ku)
- Latin: assassīnus m, percussor m, sīcārius
- Latvian: algots slepkava m or f, slepkava m or f
- Macedonian: у́биец m (úbiec), атента́тор m (atentátor)
- Malay: pembunuh upahan
- Marathi: मारेकरी m (mārekrī), हत्यारा m (hatyārā)
- Norman: assâsîn m, assâsine f
- Norwegian:
- Bokmål: snikmorder m, snikmorderske m or f, attentatmann m, attentatkvinne m or f, lønnmorder m
- Nynorsk: snikmordar m, attentatmann m, attentatkvinne f
- Odia: please add this translation if you can
- Old English: morþslaga m
- Persian: آدمکش (fa) (âdamkoš)
- Polish: zamachowiec (pl) m, zamachowczyni f, skrytobójca (pl) m, skrytobójczyni f
- Portuguese: assassino (pt) m, assassina (pt) f
- Russian: уби́йца (ru) m or f (ubíjca), ки́ллер (ru) m (kíller), наёмный уби́йца m (najómnyj ubíjca)
- Serbo-Croatian:
- Cyrillic: атѐнта̄тор m
- Roman: atèntātor (sh) m
- Slovak: atentátnik m, atentátnička f
- Slovene: atentator m, atentatorka f
- Spanish: asesino (es) m, asesina (es) f, sicario (es) m
- Swedish: lönnmördare (sv) c, lönnmörderska (sv) c
- Tagalog: manlilingo
- Thai: ผู้สังหาร (pûu-sǎng-hǎan)
- Tibetan: please add this translation if you can
- Turkish: suikastçı (tr)
- Ukrainian: на́йманий уби́вця m (nájmanyj ubývcja)
- Vietnamese: kẻ ám sát, sát thủ (vi)
- Welsh: bradlofrudd m
- Yiddish: רוצח m (retseyekh), מערדער m (merder)
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