ISO 639-1
oc Occitan (post 1500)
· filed 2026-07-18 · click a code to copy
Occitan (post 1500) carries the ISO 639-1 two-letter code oc.
In practice this code appears in HTML (<html lang="oc">), HTTP Accept-Language headers, locale identifiers such as oc-XX, subtitle tracks and translation files — anywhere software needs to say “this content is in Occitan (post 1500)”.