| Bilba | |
| Nativename: | Eastern Rote |
| States: | Indonesia |
| Region: | Rote Island |
| Speakers: | 7,000 |
| Date: | 2002 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | Central–Eastern |
| Fam4: | Timoric |
| Fam5: | West Timor |
| Fam6: | Rote |
| Iso3: | bpz |
| Glotto: | bilb1242 |
| Glottorefname: | Bilba |
| Dia1: | Bilba |
| Dia2: | Diu |
| Dia3: | Lelenuk |
Bilba (Belubaa) is a Central Malayo-Polynesian language of Roti Island, off Timor, Indonesia.