| Marau | |
| States: | Indonesia |
| Region: | South coast of Serui Island, Ambai Islands group |
| Speakers: | 1,700 |
| Date: | 1987 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | Central–Eastern Malayo-Polynesian |
| Fam4: | Eastern Malayo-Polynesian |
| Fam5: | South Halmahera–West New Guinea |
| Fam6: | Cenderawasih Bay |
| Fam7: | Yapen |
| Fam8: | Central–Western |
| Dia1: | Warabori[1] |
| Iso3: | mvr |
| Glotto: | mara1397 |
| Glottorefname: | Marau |
Marau is an Eastern Malayo-Polynesian language spoken on the south coast of Serui Island of the Ambai Islands group in Cenderawasih Bay, within Papua Province of Western New Guinea, northeastern Indonesia.