- Afrikaans: Oom
- Albanian: Dajë
- Amharic: ወንድም (wǝndɨm)
- Arabic: عمّ (ʿamm)
- Armenian: հորեղբայր (horeghbayr)
- Azerbaijani: Uncle
- Basque: Osaba
- Belarusian: Дядзька (djadźka)
- Bengali: চাচা (chacha)
- Bosnian: Ujak
- Bulgarian: Чичо (chicho)
- Catalan: Oncle
- Cebuano: Tito
- Chichewa: Uncle
- Chinese (Simplified): 叔叔 (shūshu)
- Chinese (Traditional): 叔叔 (shūshu)
- Corsican: Ziu
- Croatian: Ujak
- Czech: Strýc
- Danish: Onkel
- Dutch: Oom
- English: Uncle
- Esperanto: Onklo
- Estonian: Onu
- Finnish: Setä
- French: Oncle
- Galician: Tío
- Georgian: ბიძა (bidza)
- German: Onkel
- Greek: Θείος (theíos)
- Gujarati: કાકા (kākā)
- Haitian Creole: Tonton
- Hausa: Unka
- Hawaiian: Tūtū
- Hebrew: דוד (dod)
- Hindi: चाचा (chacha)
- Hmong: Ntxawm
- Hungarian: Nagybácsi
- Icelandic: Frændi
- Igbo: Nna-ukwu
- Indonesian: Paman
- Irish: Uncail
- Italian: Zio
- Japanese: おじ (oji)
- Javanese: Manis
- Kannada: ಮಾವ (māva)
- Kazakh: Аға (ağa)
- Khmer: បង (bong)
- Korean: 삼촌 (samchon)
- Kurdish: Dêj
- Kyrgyz: Теңдеш (tëngdesh)
- Lao: ເອົາ (eao)
- Latin: Avunculus
- Latvian: Onkulis
- Lithuanian: Dėdė
- Luxembourgish: Onkel
- Macedonian: Чичко (chichko)
- Malagasy: Dada
- Malay: Paman
- Malayalam: അച്ചന് (achan)
- Maltese: Zio
- Maori: Teina
- Marathi: काका (kākā)
- Mongolian: Нэгч (nech)
- Nepali: काका (kākā)
- Norwegian: Onkel
- Pashto: ماما (mama)
- Persian: دایی (dāyi)
- Polish: Wujek
- Portuguese: Tio
- Punjabi: ਚਾਚਾ (chāchā)
- Romanian: Unchi
- Russian: Дядя (dyadya)
- Samoan: Suamalie
- Scots Gaelic: Uncal
- Serbian: Ујак (ujak)
- Sesotho: Nkhono
- Shona: Sekuru
- Sindhi: چاچا (chacha)
- Sinhala: මාමා (māma)
- Slovak: Strýko
- Slovenian: Stric
- Somali: Adeer
- Spanish: Tío
- Sundanese: Ami
- Swahili: Mjomba
- Swedish: Farbror
- Tajik: Додар (dodar)
- Tamil: மாமா (māmā)
- Telugu: మామ (māma)
- Thai: ลุง (lung)
- Turkish: Amca
- Ukrainian: Дядько (dyad’ko)
- Urdu: چچا (chacha)
- Uzbek: Ammaki
- Vietnamese: Chú
- Welsh: Ewythr
- Xhosa: Utyebha
- Yiddish: אונקל (unkl)
- Zulu: Umalume