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