ISO 639-1
ii Sichuan Yi; Nuosu
· filed 2026-07-18 · click a code to copy
Sichuan Yi; Nuosu carries the ISO 639-1 two-letter code ii.
In practice this code appears in HTML (<html lang="ii">), HTTP Accept-Language headers, locale identifiers such as ii-XX, subtitle tracks and translation files — anywhere software needs to say “this content is in Sichuan Yi”.