| Official Name: | Obiaruku |
| Pushpin Map: | Nigeria |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Nigeria |
| Subdivision Type: | Country |
| Subdivision Name: | Nigeria |
| Subdivision Type1: | State |
| Subdivision Name1: | Delta State |
| Subdivision Type2: | LGA(s) |
| Subdivision Name2: | Ukwuani |
| Subdivision Type3: | Federal Constituency |
| Subdivision Name3: | Ndokwa-Ukwuani |
| Subdivision Type4: | Senatorial District |
| Subdivision Name4: | Delta North |
| Leader Title: | Community leader |
| Leader Name: | Okpala-Uku |
| Established Date2: | Settlement Type |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | Time Zone |
| Utc Offset: | WAT |
| Timezone Dst: | WAT |
| Coordinates: | 5.85°N 15°W |
| Postal Code: | Postal Code |
| Area Code: | 322112 |
| Blank Name: | Settlement Type |
| Blank Info: | Town |
Obiaruku is an Ukwuani town in Delta State, Nigeria.It was founded by the people of Eziokpor and Umuebu origin in Delta State. Obiaruku is the headquarter of Ukwuani Local Government Area (LGA), Delta State, Nigeria. It is one of the major homeland of the Ukwuani speaking(akashiada) people. The Okpala-Uku of Obiaruku is the oldest male in the town.[1] Obiaruku is made of several communities and sub communities called Quarters which includes Okuzu, Umusume, Ogbeaka, Ogwezi etc. Each community or Quarter has an Okpala-Uku who is the oldest male as the traditional head of the community. The Okpala-Uku has his cabinet made up of Chiefs (Inotu) including the Onotu-Uku(traditional prime minister), Ugo (Speaker), Onueze etc. There’s a general assembly of traditional rulers with the oldest Okpala-uku as the Okpala-Uku General.