If you've been watching the FIFA World Cup, you may have noticed that Switzerland is listed as "SUI" on the scoreboard instead of the more obvious "SWI."
It can seem a little confusing at first. After all, "SWI" looks like the abbreviation that should be used for Switzerland. However, the answer has nothing to do with football. It comes from international naming traditions that FIFA has followed for many years.
FIFA's three-letter country codes are largely based on the abbreviations used by the International Olympic Committee (IOC) and other international sports organizations.
In Switzerland's case, "SUI" comes from the country's French name, "Suisse."
French has long been one of FIFA's official languages, and many of its country codes were created using French names instead of English ones. Since French is also one of Switzerland's four official languages, FIFA has continued using SUI in every World Cup and international competition.

Other FIFA Country Codes That Don't Match English
Switzerland isn't the only country with a FIFA abbreviation that looks different from its English name. Several countries use codes based on their local names or historical naming traditions.
For example:
- MAR is used for Morocco because of its French name, Maroc.
- ESP is used for Spain because of its Spanish name, España.
- CIV is used for Ivory Coast because the country officially competes internationally under its French name, Côte d'Ivoire.
