IOL 2023 working languages

The list of the working languages of the 20th IOL (IOL 2023 Bansko) is as follows:

  • Bulgarian
  • Chinese (simplified)
  • Chinese (traditional)
  • Czech
  • Dutch
  • English
  • Estonian
  • Finnish
  • French
  • German
  • Hungarian
  • Japanese
  • Korean
  • Latvian
  • Polish
  • Portuguese (Brazilian)
  • Romanian
  • Russian
  • Slovenian
  • Spanish
  • Swedish
  • Thai
  • Turkish
  • Ukrainian