- Albanian: Vietnam i Jugut m, Vietnami i Jugut m (definite)
- Arabic: فِيِتْنَام الْجَنُوبِيَّة f (fiyitnām al-janūbiyya) (definite), فْيِتْنَام الْجَنُوبِيَّة f (fyitnām al-janūbiyya) (definite)
- Armenian: Հարավային Վիետնամ (Haravayin Vietnam)
- Azerbaijani: Cənubi Vyetnam
- Belarusian: Паўднёвы В'етна́м m (Paŭdnjóvy Vʺjetnám)
- Bengali: দক্ষিণ ভিয়েতনাম (dokkhin bhiẏetonam)
- Bulgarian: Ю́жен Виетна́м m (Júžen Vietnám)
- Burmese: တောင်ဗီယက်နမ် (taungbiyaknam)
- Chinese:
- Cantonese: 南越 (naam4 jyut6)
- Mandarin: 南越 (zh) (Nányuè)
- Czech: Jižní Vietnam m
- Danish: Sydvietnam n
- Dutch: Zuid-Vietnam n
- Estonian: Lõuna-Vietnam
- Finnish: Etelä-Vietnam
- French: Viêt Nam du Sud m, Sud-Viêt Nam m
- Georgian: სამხრეთი ვიეტნამი (samxreti vieṭnami)
- German: Südvietnam (de) n
- Hindi: दक्षिणी वियतनाम m (dakṣiṇī viyatnām)
- Hungarian: Dél-Vietnam
- Indonesian: Vietnam Selatan
- Italian: Vietnam del Sud m
- Japanese: 南ベトナム (ja) (みなみベトナム, Minami Betonamu)
- Khmer: វៀតណាមខាងត្បូង (viət naam khaang tboung)
- Korean: 남베트남 (Nambeteunam)
- Lao: ຫວຽດນາມໃຕ້ (wīat nām tai)
- Latvian: Dienvidvjetnama f
- Lithuanian: Pietų Vietnamas m
- Macedonian: Јужен Виетнам m (Južen Vietnam)
- Malay: Vietnam Selatan
- Mongolian:
- Cyrillic: Өмнөд Вьетнам (Ömnöd Vʹjetnam)
- Norwegian:
- Bokmål: Sør-Vietnam n
- Persian:
- Dari: وِیَتْنَامِ جَنُوبِی (wiyatnām-i janūbī)
- Iranian Persian: وِیَتْنامِ جُنوبی (viyatnâm-e jonubi)
- Polish: Wietnam Południowy m
- Portuguese: Vietname do Sul m (European), Vietnã do Sul m (Brazilian)
- Romanian: Vietnamul de Sud n (definite)
- Russian: Ю́жный Вьетна́м (ru) m (Júžnyj Vʹjetnám)
- Serbo-Croatian:
- Cyrillic: Ју̑жнӣ Вијѐтнам m
- Roman: Jȗžnī Vijètnam (sh) m
- Slovak: Južný Vietnam m
- Slovene: Južni Vietnam m
- Spanish: Vietnam del Sur m
- Swedish: Sydvietnam n
- Thai: เวียดนามใต้ (wîiat-naam-dtâai)
- Turkish: Güney Vietnam
- Ukrainian: Півде́нний В'єтна́м m (Pivdénnyj Vʺjetnám)
- Urdu: جُنُوبی وِیَت نام m (junūbī viyat nām), جُنُوبی وِیَتْنَام m (junūbī viyatnām), جَنُوبی وِیَت نام m (janūbī viyat nām), جَنُوبی وِیَتْنَام m (janūbī viyatnām)
- Vietnamese: Việt Nam Cộng hoà, miền Nam Việt Nam, miền Nam, Nam Việt
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