| Notsi | |
| Region: | New Ireland |
| Speakers: | 3,500 |
| Date: | 2023 Estimate Joshua Project |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam3: | Oceanic |
| Fam4: | Western |
| Fam5: | Meso-Melanesian |
| Fam6: | (New Ireland) |
| Fam7: | Tabar |
| Iso3: | ncf |
| Glotto: | nots1237 |
| Glottorefname: | Notsi |
Notsi is an Austronesian language spoken in seven villages along the east coast of New Ireland, Papua New Guinea about midway between Kavieng and Namatanai. The Nalik language is the neighboring language to the north and is interspersed among Kuot language villages.