| English | eng-000 |
| Roman Catholic Diocese of Groningen-Leeuwarden | |
| Deutsch | deu-000 | Bistum Groningen-Leeuwarden |
| italiano | ita-000 | Diocesi di Groninga-Leeuwarden |
| latine | lat-000 | Dioecesis Groningensis-Leovardiensis |
| Nederlands | nld-000 | Bisdom Groningen-Leeuwarden |