- Afrikaans: Konstantinopel n
- Albanian: Konstantinopoja
- Arabic: الْقُسْطَنْطِينِيَّة (ar) f (al-qusṭanṭīniyya)
- Armenian: Կոստանդնուպոլիս (hy) (Kostandnupolis), Պոլիս (Polis), Կ. Պոլիս (K. Polis)
- Old Armenian: Կոստանդնուպօլիս (Kostandnupōlis)
- Azerbaijani: Konstantinopol, Qüstəntiniyyə
- Basque: Konstantinopolis
- Belarusian: Канстанціно́паль m (Kanstancinópalʹ), Канстантыно́паль m (Kanstantynópalʹ) (Taraškievica), Царгра́д m (Carhrád) (Russian)
- Bengali: কুস্তুন্তুনিয়া (kustuntuniẏa)
- Breton: Kergustentin
- Bulgarian: Константино́пол m (Konstantinópol), Царигра́д m (Carigrád)
- Catalan: Constantinoble
- Chinese:
- Mandarin: 君士坦丁堡 (zh) (Jūnshìtǎndīngbǎo)
- Coptic: ⲕⲱⲥⲧⲁⲛⲧⲓⲛⲟⲩⲡⲟⲗⲓⲥ (kōstantinoupolis)
- Corsican: Costantinopuli f
- Czech: Konstantinopol m, Cařihrad (cs) m
- Danish: Konstantinopel
- Dutch: Constantinopel (nl) n
- Esperanto: Konstantinopolo
- Estonian: Konstantinoopol
- Faroese: Konstantinopolis
- Finnish: Konstantinopoli (fi)
- French: Constantinople (fr) m
- Middle French: Constantinoble
- Old French: Constantinoble
- Galician: Constantinopla
- Georgian: კონსტანტინოპოლი (ḳonsṭanṭinoṗoli)
- German: Konstantinopel (de) n
- Greek: Κωνσταντινούπολη (el) f (Konstantinoúpoli)
- Ancient: Κωνσταντινούπολις f (Kōnstantinoúpolis)
- Hebrew: קונסטנטינופול (konstantinopol)
- Hindi: क़ुस्तुंतुनिया m (qustuntuniyā)
- Hungarian: Konstantinápoly (hu)
- Ido: Konstantinopolo
- Indonesian: Konstantinopel
- Irish: Cathair Chonstaintín f
- Italian: Costantinopoli (it) f
- Japanese: コンスタンティノープル (Konsutantinōpuru), コンスタンティノポリス (Konsutantinoporisu)
- Korean: 콘스탄티노폴리스 (Konseutantinopolliseu)
- Ladino: Kosta
- Latin: Constantinopolis f
- Low German: Konstantinopel
- Macedonian: Константинопол m (Konstantinopol), Цариград m (Carigrad)
- Malay: Konstantaniah, Kustantiniyah
- Malayalam: കോണ്സ്റ്റാന്റിനോപ്പിള് (kōṇsṟṟānṟinōppiḷŭ)
- Middle English: Constantinople
- Neapolitan: Custantenobbule
- Norwegian: Konstantinopel
- Occitan: Constantinòple
- Old Church Slavonic:
- Cyrillic: Цѣсарьградъ m (Cěsarĭgradŭ), Цьсарьградъ m (Cĭsarĭgradŭ), Цѣсар҄ь Градъ m (Cěsarʹĭ Gradŭ)
- Old East Slavic: Цѣсарьгородъ m (Cěsarĭgorodŭ), Цьсарьгородъ m (Cĭsarĭgorodŭ)
- Old Norse: Miklagarðr
- Ottoman Turkish: قسطنطینیه (Kostantiniyye)
- Persian: قسطنطنیه (fa) (qostantaniyye)
- Polish: Konstantynopol (pl) m
- Portuguese: Constantinopla (pt)
- Old Portuguese: Constantinopla
- Romanian: Constantinopol, Țarigrad
- Russian: Константино́поль (ru) m (Konstantinópolʹ), Царьгра́д (ru) m (Carʹgrád)
- Sardinian: Costantinòpoli f
- Serbo-Croatian:
- Cyrillic: Константинопољ m, Константинопол m, Цариград m
- Roman: Konstantinopolj m, Konstantinòpol (sh) m, Carigrad (sh) m
- Sicilian: Costantinòpuli f
- Slovak: Konštantínopol m, Carihrad m
- Slovene: Konstantinopel (sl) m, Carigrad m
- Spanish: Constantinopla f
- Swedish: Konstantinopel
- Tagalog: Konstantinopla
- Tajik: Константинопол (Konstantinopol)
- Thai: คอนสแตนติโนเปิล
- Turkish: Konstantinopolis (tr)
- Ukrainian: Константино́поль m (Konstantynópolʹ), Царегра́д m (Carehrád)
- Urdu: قسطنطنیہ m (qustuntuniyā)
- Uyghur: كونىستانتىنوپول (konistantinopol)
- Uzbek: Konstantinopol, Qustantiniya
- Welsh: Caergystennin
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