| Cymraeg | cym-000 |
| Llyfr Coch Hergest | |
| brezhoneg | bre-000 | Levr Ruz Hergest |
| Deutsch | deu-000 | The Red Book of Hergest |
| English | eng-000 | Red Book of Hergest |
| français | fra-000 | Livre Rouge de Hergest |
| Nederlands | nld-000 | Rode boek van Hergest |
| bokmål | nob-000 | Llyfr coch Hergest |
| русский | rus-000 | Красная Книга из Хергеста |