| Part of speech | proper name |
|---|---|
| Gender | masculine |
| Singular | Plural | |
|---|---|---|
| Nominative | Rhein | |
| Genitive | Rheins, Rheines | |
| Dative | Rhein, Rheine | |
| Accusative | Rhein |
| Dutch | Rijn |
|---|---|
| English | Rhine |
| Esperanto | Rejno |
| Faeroese | Rín; Ríná |
| French | Rhin |
| Italian | Reno |
| Low German | Ryn |
| Luxemburgish | Rhäin |
| Portuguese | Reno |
| Russian | Рейн |
| Saterland Frisian | Rien |
| Spanish | Rin |
| Swedish | Rhen |
| Turkish | Ren |
| West Frisian | Ryn |