What is the ISO 3166-1 code for the European Union?
You can use EU for the name European Union. Please note that this is not an official ISO 3166-1 country code. The European Union is not a country but rather an organization. As such it is not eligible to be formally included in ISO 3166-1. Recognizing, however, that many users of ISO 3166-1 have a practical need to encode that name the ISO 3166/MA reserved the two-letter combination EU for the purpose of identifying the European Union within the framework of ISO 3166-1.