Linked from
The 19 pages that link to Official language, each with the reason it gives.
Guarani languageNarrower topic: Guarani shares this legal status with Spanish in Paraguay.
Galician languageRelated: Galician shares official status with Spanish in Galicia.
Lithuanian languageRelated: Lithuanian has official-language status in Lithuania.
SangoRelated: Sango’s official status places it alongside French in the Central African Republic.
Swazi languageRelated: SiSwati has official status in both Eswatini and South Africa.