Ndoni is a riverine (Olu) Igbo clan in present day Ogba-Egbema-Ndoni LGA of Rivers State. It is considered an extension of the Ndosumili/Ukwuani (Ndokwa) tribe in today’s Delta State, although geographically isolated from the rest of the tribe by the Niger.
It is also culturally related to the Ogbaru clans (in today’s Anambra State), which border it by the north.
Ndoni is also proximal to some notable Olu clans. They are Oguta, Egwe, Egbema and Ọgba.