| Ndengereko | |
| Nativename: | Rufiji |
| States: | Tanzania |
| Region: | Ruvuma |
| Ethnicity: | Ndengereko |
| Speakers: | 72,000 |
| Date: | 2013 |
| Ref: | e18 |
| Familycolor: | Niger-Congo |
| Fam2: | Atlantic–Congo |
| Fam3: | Benue–Congo |
| Fam4: | Bantoid |
| Fam5: | Bantu |
| Fam6: | Rufiji–Ruvuma |
| Fam7: | Mbinga |
| Fam8: | Matandu |
| Lc1: | ndg |
| Ld1: | Ndengereko |
| Lc2: | rui |
| Ld2: | Rufiji (duplicate code) |
| Guthrie: | P.11, P.12 |
| Glotto: | nden1248 |
| Glottorefname: | Ndengereko |
Ndengereko, also known as Rufiji (Fiji, Ruihi) after the local river,[1] is a Bantu language of the Matumbi hills, near Kibiti, and near Mchukivi and Bungu, Tanzania.