The Obi of Aboh is the traditional ruler of the Aboh Kingdom founded in 1650, by Obi Essumei Ukwu. The monarchy is an elective one, which rotates around the royal houses of Umu Ossai, Umu Ozegbe, Umu Ojugbali and Umu Ogwezi.
Following the colonization of modern-day Nigeria by the British Empire, its monarchs were still able to retain their roles as traditional rulers, with their political power removed, and replaced by the British Southern Nigeria Protectorate, and later by the government of Nigeria.
The following list of Aboh monarchs was arranged by the Ndanike, Ijoma Essumei, a royal title of the Aboh kingdom. The time period of the reigns of the first 4 Aboh monarchs were not able to be accurately ascertained, so a period could not be determined.