The English and Dutch versions of Babel can both be considered to be ‘the original’, as I’ve written them myself, taking liberties in both. All others are translations. Here’s a list of all editions present and future, updated as per 6 March 2019:
🇳🇱 Dutch: Athenaeum, Amsterdam. Expected mid-May 2019.
🇬🇧 English, UK: Profile, London. Hardcover published in November 2018.
🇺🇸 English, USA: Grove Atlantic, New York. Hardcover published in December 2018.
👂 English audiobook, USA: Audible, New York.
🇩🇪 German: Beck, Munich.
🇬🇷 Greek: Mataixmio, Athene.
🇮🇹 Italian: Garzanti, Milan, expected late May or early June 2019.
🇰🇷 Korean: Miraebook Publishing, Seoul.
🇨🇳 Mandarin, China: Shanghai Dook, Shanghai.
🇹🇼 Mandarin, Taiwan: Faces Publishing, Taipei.
🇳🇴 Norwegian: Pax Forlag, Oslo. Expected early 2020.
🇵🇱 Polish: Karakter, Kraków.
🇷🇺 Russian: Azbooka-Atticus, Moscow.
🇪🇸 Spanish: Turner, Madrid. Published in February 2019.
🇲🇽 Spanish: Turner, Mexico. Expected late 2019.
🇻🇳 Vietnamese: Nhã Nam, Hanoi.