| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Tetun | 493,500 | Austronesian | Timor | East Nuclear Timor | ||
| ● Mambae | 145,000 | Austronesian | Timor | East Nuclear Timor | ||
| ● Kemak | 79,600 | Austronesian | Timor | East Nuclear Timor | ||
| ● Tukudede | 43,900 | Austronesian | Timor | East Nuclear Timor | ||
| ● Galolen | 28,100 | Austronesian | Timor | East Nuclear Timor | ||
| ● Idate | 15,000 | Austronesian | Timor | East Nuclear Timor | ||
| ● Lakalei | 3,610 | Austronesian | Timor | East Nuclear Timor |