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Alternative Names
- ሩዋን in Amharic
- روان in Arabic
- Ruán in Aragonese
- Ռուան in Armenian
- Ruan in Asturian; Bable; Leonese; Asturleonese
- Ruan in Azerbaijani
- Руан in Belarusian
- Rouan in Breton
- Руан in Bulgarian
- 鲁昂 in Chinese
- Roðem in English, Old (ca.450-1100)
- Rueno in Esperanto
- Rouen in French
- Rothom in French, Old (842-ca.1400)
- Ruán in Galician
- რუანი in Georgian
- Ρουέν in Greek, Modern (1453-)
- רואן in Hebrew
- रुआं in Hindi
- Rúðuborg in Icelandic
- ルーアン in Japanese
- Руан in Kazakh
- 루앙 in Korean
- Rotomagus in Latin
- Ruāna in Latvian
- Ruanas in Lithuanian
- Руан in Macedonian
- रोआँ in Marathi
- Roan in Occitan (post 1500)
- Руан in Ossetian; Ossetic
- روان in Persian
- Ruão in Portuguese
- Руан in Russian
- Руан in Serbian
- Ruan in Spanish; Castilian
- รูอ็อง in Thai
- Руан in Udmurt
- Руан in Ukrainian
- Ruan in Uzbek
- Roeaan in Western Frisian