| Sumau | |
| Nativename: | Garia |
| States: | Papua New Guinea |
| Region: | Madang Province |
| Date: | 2003 |
| Ref: | e18 |
| Familycolor: | Papuan |
| Fam1: | Trans–New Guinea |
| Fam2: | Madang |
| Fam3: | Rai Coast |
| Fam4: | Peka |
| Iso3: | six |
| Glotto: | suma1270 |
| Glottorefname: | Sumau |
Sumau, also known as Garia (Kari), is a Rai Coast language spoken in Madang Province, Papua New Guinea.