| Serui-Laut | |
| Also Known As: | Arui |
| States: | Indonesia |
| Region: | Serui Island, (Ambai Islands) |
| Speakers: | 1,200 |
| 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 |
| Iso3: | seu |
| Glotto: | seru1244 |
| Glottorefname: | Serui-Laut |
Serui-Laut, or Arui, is an Austronesian language spoken on Serui Island of the Ambai Islands, in Western New Guinea, Indonesia.
Serui Island is located in Cenderawasih Bay of Papua Province.
It is one of the Yapen languages, in the South Halmahera–West New Guinea languages group.