Umudioka is a town in Dunukofia Local Government Area in Anambra State, Southeastern Nigeria. It is made up of ten villages, and shares boundaries with neighbouring towns as follows: Ogidi, Ogbunike, Umunya, Umunnachi and Ifite-Dunu.
Umudioka is one of the six towns that make up the ancient Dunukofia clan in Anambra state.The first and current Traditional ruler,who is also the ancestral head of Umudioka federated is H.R.H.IGWE S.N.CHUKWUNULU,EZEDIOKA 1 OF UMUDIOKA AND ANCESTRAL HEAD OF UMUDIOKA.