| English | eng-000 |
| Castilian Spanish | |
| ISO 639-PanLex | art-274 | spa-013 |
| English | eng-000 | Peninsular Spanish |
| español | spa-000 | Dialecto castellano septentrional |
| español | spa-000 | castellano |
| español de España | spa-013 | español de España |
| Türkçe | tur-000 | Kastilya İspanyolcası |