| Part of speech | proper name |
|---|---|
| Hyphenation | Tong·o |
| Nominative | Tongo |
|---|---|
| Accusative | Tongon |
| Albanian | Tongë |
|---|---|
| Czech | Tonga |
| English | Tonga |
| Finnish | Tonga |
| French | Tonga |
| German | Tonga |
| Greek | Τόγκα |
| Icelandic | Tonga |
| Malay | Tonga |
| Norwegian | Tonga |
| Polish | Tonga |
| Russian | Тонга |
| Spanish | Tonga |
| Swedish | Tonga |
| Ukrainian | Тонга |