| русский | rus-000 |
| Идра | |
| brezhoneg | bre-000 | Hydra |
| català | cat-000 | Illa d’Hidra |
| Deutsch | deu-000 | Hydra |
| ελληνικά | ell-000 | Ύδρα |
| English | eng-000 | Hydra |
| français | fra-000 | Hydra |
| magyar | hun-000 | Idra |
| italiano | ita-000 | Idra |
| Latina Nova | lat-003 | Hydra |
| lengua lumbarda | lmo-000 | Hydra |
| Nederlands | nld-000 | Hydra |
| nynorsk | nno-000 | Ýdra i Dei saroniske øyane |
| bokmål | nob-000 | Hydra |
| polski | pol-000 | Hydra |
| español | spa-000 | Hidra |
| svenska | swe-000 | Hydra |