| Simeku | |
| States: | Papua New Guinea |
| Region: | Bougainville Province |
| Speakers: | 3,000 |
| Date: | 2007 |
| Ref: | e18 |
| Familycolor: | Papuan |
| Fam1: | South Bougainville |
| Fam2: | Nasioiic |
| Fam3: | Nasioi |
| Fam4: | Simekuic |
| Iso3: | smz |
| Glotto: | sime1242 |
| Glottorefname: | Simeku |
| Dia1: | Mainoki |
| Dia2: | Koopei |
Simeku is a South Bougainville language spoken in the mountains of southern Bougainville Province, Papua New Guinea.