GET /lang/{language}restcountries.com:rest-countries-api
Find all countries where a specific language is official. Accepts either language names (e.g., "spanish", "German") or ISO 639-1/639-2 codes (e.g., "es", "deu"). Returns countries where that language has official status. Useful for language-based geographic queries or localization planning.
Get all countries where a specific language is spoken.
- Accepts full language names: "spanish", "german" (case-insensitive) - Also accepts ISO language codes - Returns all countries with that official language (e.g., "Spanish" returns 24+ countries) - Partial name matching works for language names
(string, query, optional)
Comma-separated list of fields to include (max 10 fields)
(string, path, required)
Language name (e.g., 'spanish', 'english', 'french')
| Title | Type | URL | Action |
|---|---|---|---|
| Search by language | openapi-spec |
https://restcountries.com/v3.1/lang/spanish |
|
| Search by language | openapi-spec |
https://restcountries.com/v3.1/lang/Spanish |
| Time | Status | Latency | Size |
|---|---|---|---|
| 2026-03-23 10:42:02.692831 | 200 | 393ms | |
| 2026-03-23 09:40:33.093867 | 200 | 416ms |