- Aari: isimanna
- Abkhaz: аиашьа (ab) (aiaš'a)
- Adyghe: please add this translation if you can
- Afrikaans: broer (af)
- Ainu: (elder) ユポ (yupo)
- Akkadian: 𒋀 (aḫu)
- Albanian: vëlla (sq)
- Amharic: ወንድም (am) (wändəm)
- Arabic: أخ (ar) (ʾax) m.
- Aragonese: chirmán (an) m.
- Aramaic:
- Syriac: ܐܚܐ ('aħā') m.
- Hebrew: אחא ('aħā') m.
- Archi: у́шду (úšdu)
- Armenian: եղբայր (hy) (eġbayr), ախպեր (hy) (axper)
- Old Armenian: եղբայր (ełbayr)
- Aromanian: frate (rup)
- Assamese: please add this translation if you can
- Asturian: hermanu (ast) m.
- Aymara: jilata (ay)
- Azeri: qardaş (az)
- Bakhtiari: گگه (gage)
- Baluchi: برات (barát)
- Basque: anai (eu) (brother of a male), neba (eu) (brother of a female)
- Belarusian: брат (be) (brat) m.
- Bengali: ভাই (bn) (bhai), literary: ভ্রাতা (bn) (bhrata)
- Breton: breur (br) m., breudeur pl.
- Bulgarian: брат (bg) (brat) m.
- Burmese: အကို (my) (ăko) (elder); ညီ (my) (nyi) (younger)
- Catalan: germà (ca) m.
- Cherokee: ᏗᎾᏓᏅᏟ (chr) (dinadanvtli)
- Chinese:
- Mandarin: 哥哥 (cmn) (gēge) (elder), 弟弟 (cmn) (dìdi) (younger), 兄弟 (cmn) (xiōngdi) (male sibling, brothers: (xiōng-dì))
- Min Nan: (elder brother) 阿兄 (a-hiaⁿ); (younger brother) 小弟 (sió-tī), (brothers) 兄弟 (nan) (hiaⁿ-tī)
- Teochew: (elder brother) a1-hion1; (younger brother) a1-di2
- Chinook Jargon: ow, kahpo
- Coptic: ⲥⲟⲛ (son)
- Corsican: fratellu (co) m., frateddu (co) m.
- Crimean Tatar: (elder brother) ağa (northern dialect aqa); (younger brother) qardaş, kadâ (northern dialect mata)
- Czech: bratr (cs) m.
- Dalmatian: frutro m.
- Danish: broder (da) c., bror (da) c.
- Dhivehi: please add this translation if you can
- Dutch: broer (nl) m., broeder (nl) m. (formal)
- Egyptian: sn
-
- Esperanto: frato (eo)
- Estonian: vend (et), veli (et)
- Ewe: nɔviŋutsu (brother), fo (elder brother), tsɛ (younger brother)
- Faroese: bróðir (fo) m., beiggi (fo) m.
- Finnish: veli (fi)
- French: frère (fr) m.
- Friulian: please add this translation if you can
- Galician: irmán (gl) m.
- Georgian: ძმა (ka) (jma)
- German: Bruder (de) m.
- Gooniyandi: (elder) marna
- Greek: αδελφός (el) (adelfós) m.
- Ancient: ἀδελφός (adelphos) m.
- Gujarati: ભાઈ (gu) (bhāī)
- Haitian Creole: frè
- Hausa: please add this translation if you can
- Hawaiian: kaikuaʻana
- Hebrew: אָח (he) (akh) m.
- Hindi: भाई (hi) (bhāī) m., भ्राता (hi) (bhrātā) m.
- Hungarian: fivér (hu), báty (hu) (elder brother), öcs (hu) (younger brother)
- Icelandic: bróðir (is)
- Ido: fratulo (io)
- Igbo: please add this translation if you can
- Indonesian: saudara m. (male sibling), kakak laki-laki/abang m. (elder brother), adik laki-laki m. (younger brother)
- Javanese: kangmas m. (elder brother), dimas m. (younger brother)
- Sundanese: akang, aa, raka m. (elder brother), rayi, dédé m. (younger brother)
- Ingrian: velli
- Interlingua: fratre (ia)
- Interlingue: please add this translation if you can
- Irish: deartháir (ga) m.
- Istro-Romanian: fråte m.
- Italian: fratello (it) m. (1,2,3,4), confratello m. (3,4)
- Jamaican Creole: broda, breda
- Japanese: 兄弟 (ja) (きょうだい, kyōdai) (male sibling), 兄 (ja) (あに, ani) (elder), お兄さん (ja) (おにいさん, oniisan) (elder, honorific), 弟 (ja) (おとうと, otōto) (younger)
- Kannada: ಸಹೋದರ (kn) (sahōdara)
- Karachay-Balkar: (Karachay) къарнаш (qarnaş), (Balkar) къарындаш (qarındaş)
- Kazakh: (elder) аға (kk) (ağa), (younger) іні (kk) (ini)
- Khmer: (elder) បងប្រុស (km) (borng bproh), (younger) ប្អូនប្រុស (km) (bpəōn bproh)
- Korean: 형제 (ko) (hyeongje), 형님 (ko) (hyeongnim), 오빠 (ko) (obba), 동생 (ko) (dongsaeng), 아우 (ko) (au)
- Kurdish:
- Sorani: برا (ku)
- Kyrgyz: тууган (ky), бир тууган (ky), ини (ky), ага (ky), өңдүү (ky), өз киши (ky), жолдош (ky), жердеш (ky), өнөктөш (ky), кесиптеш (ky), монах (ky), кечил (ky), дос (ky)
- Lao: (elder) ອ້າຍ (lo) (ȃːy), (younger) ນ້ອງຊາຍ (lo) (nɔ̑ːŋ sáːy)
- Latgalian: bruoļs
- Latin: frater (la) m.
- Latvian: brālis (lv) m. (1,2,3)
- Ligurian: fræ
- Lithuanian: brolis (lt) m. (1,2,3)
- Livonian: veļ
- Lojban: bruna (jbo)
- Low German: Broder (nds) m., Brauder (nds) m., Broer (nds) m., Bruer (nds) m.
| | - Luganda: please add this translation if you can
- Luhya: wandaywe
- Luxembourgish: Brudder (lb) m.
- Macedonian: брат (mk) (brat) m.
- Malay:
- Rumi: abang (ms) (elder), kakak (ms) (elder), adik lelaki (ms) (younger)
- Jawi: ابڠ (ms) (elder), کاکق (ms) (elder), اديق للاکي (ms) (younger)
- Malayalam: സഹോദരന് (ml) (sahōdaran), (Elder) ചേട്ടന് (ml) (cēṭṭan), (Younger) അനിയന് (ml) (aniyan)
- Maltese: ħu (mt)
- Manx: braar (gv) m.
- Maori: tuākana (mi) (older), tēina (mi) (younger)
- Marathi: भाऊ (mr) (bhāū) m.
- Mazanderani: برار (berâr)
- Mi'kmaq: nidap
- Mirandese: armano m.
- Mongolian: ах дүү (mn) (ah düü)
- Nama: ǃgâsab
- Navajo: (younger) atsilí, (elder) ánaaí
- Nepali: दाजु (ne) (dāju)
- Northern Sami: viellja
- Norwegian: bror (no) m.
- Novial: please add this translation if you can
- Occitan: fraire (oc) m.
- Old Church Slavonic:
- Cyrillic: братръ m.
- Glagolitic: ⰁⰓⰀⰕⰓⰟ m.
- Old English: brōþor (ang) m.
- Old Norse: bróðir m.
- Old Provençal: frayre
- Old Prussian: brāti m.
- Oriya: please add this translation if you can
- Ossetian:
- Digor: æнсувæр (ænsuvær), æрвадæ (ærvadæ)
- Iron: æфсымæр (æfsymær), æрвад (ærvad)
- Pashto: please add this translation if you can
- Persian: برادر (fa) (barâdar)
- Phoenician: 𐤀𐤇 ('ḥ)
- Polabian: brot m.
- Polish: brat (pl) m.
- Portuguese: irmão (pt) m.
- Punjabi: ਵੀਰ (pa) (vīra)
- Rajasthani: please add this translation if you can
- Romani: phral (rm) m.
- Kalo Finnish Romani: phal, praal
- Romanian: frate (ro) m.
- Romansch: frar (rm) m.
- Russian: брат (ru) (brat) m.
- Samoan: please add this translation if you can
- Sanskrit: भ्रातृ (sa) (bhrā́tṛ) m.
- Sardinian: fràde m.
- Scots: brither, brar
- Scottish Gaelic: bràthair (gd) m.
- Serbo-Croatian:
- Cyrillic: брат (sh) m.
- Roman: brat (sh) m.
- Seri: aacaz (younger brother of a female)
- Sicilian: frati (scn) m.
- Sikkimese: please add this translation if you can
- Sindhi: ڀاءُ (sd) m.
- Sinhalese: (elder) අය්යා (si) (ayyā), (younger) මල්ලි (si) (malli)
- Slovak: brat (sk) m.
- Slovene: brat (sl) m.
- Somali: please add this translation if you can
- Sorbian:
- Lower Sorbian: bratš m.
- Upper Sorbian: bratr (hsb) m.
- Spanish: hermano (es) m.
- Swahili: ndugu (sw), kaka (sw)
- Swedish: bror (sv) c., broder (sv) c. (elder/more formal)
- Tagalog: kapatid na lalaki, (brother), kuya (elder brother), totoy (younger brother)
- Tajik: бародар (tg) (barodar)
- Talysh:
- Anbarani: بوه (bəva)
- Asalemi: برا (bərâ)
- Tamil: சகோதரன் (ta) (čakōtaraṉ)
- Taos: p'ǫ́yna (younger), pòpóna (elder)
- Tatar: (elder) абый (tt) (abıy), абзый (tt) (abzıy), (younger) эне (tt) (ene)
- Telugu: సోదరుడు (te) (sōdaruḍu)
- Thai: พี่ (th) (pêe) (elder), พี่ชาย (th) (pêe chaai) (elder), น้อง (th) (nóng) (younger), น้องชาย (th) (nóng chaai) (younger), ภราดร (th) (páraadon), ภราดา (th) (páraadaa)
- Tibetan: please add this translation if you can
- Tigrinya: ሓወ (ti) (ḥawä)
- Tocharian A: pracar
- Tocharian B: procer
- Tongan: tokoua (to), tuonga'ane (to)
- Turkish: erkek kardeş (tr), kardeş (tr), birader (tr)
- Turkmen: dogan (tk)
- Ugaritic: 𐎀𐎃 (ảḫ)
- Ukrainian: брат (uk) (brat) m.
- Urdu: بھائی (ur) (bhāī) m., بھراتا (ur) (bhrātā) m.
- Uyghur: (elder) ئۇكا (ug) (aka), (younger) ئۇكا (ug) (uka)
- Uzbek: (elder) aka (uz), (younger) uka (uz)
- Vietnamese: anh (vi) or anh trai (vi) (elder), em trai (vi) (younger), em (vi) (younger sibling - brother or sister), (brothers) anh em (vi)
- Volapük: blod (vo), (♂♀) gem (vo), (♂) higem (vo)
- Votic: velli
- Walloon: please add this translation if you can
- Welsh: brawd (cy)
- West Frisian: broer (fy)
- Wolof: please add this translation if you can
- Xhosa: please add this translation if you can
- Yiddish: ברודער (yi) (bruder) m.
- Yoruba: please add this translation if you can
- Zulu: please add this translation if you can
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