- Afrikaans: Mars
- Albanian: Marsi (sq) m, Mars m (indefinite)
- Amharic: ማርስ (mars)
- Arabic: الْمِرِّيخ m (al-mirrīḵ)
- South Levantine Arabic: المريخ (il-marrīḵ)
- Armenian: Մարս (hy) (Mars), Հրատ (Hrat)
- Assamese: মঙ্গল (moṅgol)
- Assyrian Neo-Aramaic: ܢܸܪܓܲܠ m (nirgāl)
- Asturian: Marte (ast) m
- Azerbaijani: Mars (az), Mərrix (obsolete)
- Bashkir: Марс (Mars)
- Basque: Martitz (eu)
- Belarusian: Марс m (Mars)
- Bengali: মঙ্গল (bn) (moṅgol)
- Breton: Meurzh (br) m
- Bulgarian: Марс m (Mars)
- Burmese: အင်္ဂါ (my) (angga)
- Carpathian Rusyn: Марс m (Mars)
- Catalan: Mart (ca) m
- Cherokee: ᎹᏏ (masi)
- Chinese:
- Cantonese: 火星 (fo2 sing1)
- Eastern Min: 火星 (Huŏ-sĭng)
- Hakka: 火星 (Fó-sên)
- Hokkien: 火星 (zh-min-nan) (hóe-chheⁿ, hé-chhiⁿ)
- Mandarin: 火星 (zh) (Huǒxīng)
- Wu: 火星 (5hu-shin)
- Chuvash: Марс (Mars)
- Coptic: ⲙⲟⲗⲟⲭ (molokh)
- Cornish: Meurth m
- Corsican: Marte
- Crimean Tatar: Merih
- Czech: Mars (cs) m
- Danish: Mars (da) c
- Dutch: Mars (nl) m
- Dzongkha: མིག་དམར (mig dmar)
- Esperanto: Marso (eo)
- Estonian: Marss (et)
- Finnish: Mars (fi)
- French: Mars (fr) m
- Galician: Marte (gl) m
- Georgian: მარსი (marsi)
- German: Mars (de) m
- Greek: Άρης (el) m (Áris)
- Ancient: Τόλμα f (Tólma), Πυρόεις m (Puróeis), Ηρακλής m (Ēraklḗs)
- Gujarati: મંગળ (maṅgaḷ)
- Haitian Creole: Mas
- Hawaiian: Hōkūʻula
- Hebrew: מַאֲדִים (he) m (ma’adim)
- Hindi: मंगल (hi) (maṅgal), अंगारक (hi) m (aṅgārak), रुधिर (hi) m (rudhir)
- Hungarian: Mars (hu)
- Icelandic: Mars (is) m
- Ido: Marso (io)
- Indonesian: Marikh, Mars (id)
- Interlingua: Marte
- Irish: Mars (ga) m, Máirt (ga) m
- Italian: Marte (it) m
- Japanese: 火星 (ja) (かせい, Kasei), マーズ (ja) (Māzu), マース (Māsu), マルス (Marusu)
- Javanese: jaka bèlèk (jv)
- Kalmyk: Мигмр (Migmr)
- Kannada: ಮಂಗಳ (kn) (maṅgaḷa)
- Kashubian: Mars m
- Kazakh: Қызылжұлдыз (Qyzyljūldyz), Аңырақай (Añyraqai), Марс (Mars)
- Khmer: អង្គារ (km) (ʼɑngkiə)
- Klamath-Modoc: taktakl̓i
- Kodava: ಚೌವ (cauva)
- Korean: 화성(火星) (ko) (Hwaseong)
- Kurdish:
- Central Kurdish: بارام (ckb) (baram), بەھرام (behram), مەریخ (ckb) (merîx)
- Northern Kurdish: Behram (ku), Mars (ku), Merîx (ku)
- Kyrgyz: Марс (Mars)
- Lao: ອັງຄານ (ʼang khān), ດາວອັງຄານ (lo) (dāo ʼang khān)
- Latin: Mārs (la) m
- Latvian: Marss m
- Lithuanian: Marsas (lt) m, Žiezdrė f
- Lü: ᦡᦱᧁᦺᦝ (ḋaawfay)
- Macedonian: Марс m (Mars)
- Malay: Marikh (ms), Mars
- Malayalam: ചൊവ്വ (ml) (covva)
- Malecite-Passamaquoddy: mehqahtuwet anim
- Maltese: Mars, Marte m
- Manchu: ᡨᡠ᠋ᠸᠠ
ᡠᠰᡳ᠍ᡥᠠ (tuwa usiha)
- Manx: Mart m
- Maori: Matawhero, Tūmatauenga
- Marathi: मंगळ (maṅgaḷ)
- Middle Persian: 𐭥𐭫𐭧𐭫𐭠𐭭 (ʿlḥlʾn /wahrām/)
- Mongolian:
- Cyrillic: Ангараг (mn) (Angarag), Марс (mn) (Mars)
- Mongolian: ᠠᠩᠭᠠᠷᠠᠭ (angɣarag), ᠮᠠᠷᠰ (mars)
- Navajo: Máaz
- Norwegian:
- Bokmål: Mars (no) m
- Occitan: Mart (oc) m
- Odia: ମଙ୍ଗଳ (or) (maṅgaḷa)
- Old Church Slavonic:
- Cyrillic: Арисъ m (Arisŭ)
- Ossetian: Марс (Mars)
- Pashto: مريخ m (marix)
- Persian:
- Dari: مِرِّیخ (fa) (mirrīx), بَهْرَام (fa) (bahrām), مَارْس (fa) (mārs)
- Iranian Persian: مِرّیخ (fa) (merrix), بَهْرام (fa) (bahrâm), مارْس (fa) (mârs)
- Polish: Mars (pl) m
- Portuguese: Marte (pt) m
- Punjabi: ਮੰਗਲ (maṅgal)
- Romanian: Маrte m
- Russian: Марс (ru) m (Mars)
- Sanskrit: मङ्गल (sa) (maṅgala), रुधिर (sa) m (rudhira)
- Santali: ᱴᱤᱨᱟᱹ ᱮᱸᱜᱮᱞ (ṭiră ẽgel)
- Scottish Gaelic: Màrs m
- Serbo-Croatian:
- Cyrillic: Ма̏рс m
- Roman: Mȁrs (sh) m
- Silesian: Mars m
- Sinhalese: අඟහරු (aⁿgaharu)
- Slovak: Mars m
- Slovene: Márs (sl) m
- Sorbian:
- Upper Sorbian: Mars m
- Spanish: Marte (es) m
- Swahili: Mirihi (sw), Meriki
- Swedish: Mars (sv) c
- Tagalog: Marte
- Tajik: Миррих (Mirrix), Баҳром (tg) (Bahrom)
- Tamil: செவ்வாய் (ta) (cevvāy)
- Tatar: Марс (Mars), Мәрих (Märix)
- Telugu: అంగారకుడు (te) (aṅgārakuḍu), రుధిరుడు (rudhiruḍu)
- Thai: ดาวอังคาร (daao ang-kaan), อังคาร (th) (ang-kaan)
- Tibetan: མིག་དམར (mig dmar)
- Turkish: Mars (tr), Kızıl Gezegen, Kızıldız, Bakırsokum (tr), Merih (tr) (archaic), Sakıt (tr) (archaic)
- Turkmen: Mars, Myrryh
- Ukrainian: Марс (uk) m (Mars)
- Urdu: مِرِّیخ m (mirrīx), مَن٘گَل (ur) m (maṅgal), بَہْرام m (bahrām)
- Uyghur: مارس (mars), مېرىخ (mërix)
- Uzbek: Mars, Mirrix (obsolete)
- Vietnamese: sao Hoả (―火 (vi)), Hoả tinh (vi) (火星)
- Volapük: Mard
- Welsh: Mawrth (cy) m
- West Frisian: Mars
- Yiddish: מאַדים m (madim), מאַרס m (mars)
- Zhuang: Ndaundeiqfeiz
- Zulu: uMasi
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