The  Igbo, sometimes  referred to as  Ibo, are one of the largest single ethnicities in  Africa. Most Igbo speakers are based in southeast Nigeria, where they constitute about 17% of the population; they can also be found in significant numbers in Cameroon and Equatorial Guinea.

Their language is also called Igbo. The primary Igbo states in Nigeria are Anambra, Abia, Imo, Ebonyi, and Enugu States. The Igbos also constitute more than 25% of the population in some Nigerian States like Delta State and Rivers State. Traces of the Igbo Culture and language could be found in Cross River, Akwa Ibom and Bayelsa States. Igbo language is predominant in such cities like  Onitsha, Aba, Owerri, Enugu, Nnewi, Nsukka, Awka, Umuahia, and Asaba, amongst others.

Origin
There have been postulations of different origins of the Igbo; however, serious studies based on testable facts clarify that the Igbo have lived in their country for tens of millennia. The archeological finds at Ugwuele Okigwe make an insightful proof of human activities in the theatre of Igbo civilization more than two hundred and fifty thousand years ago. Evidence of man-made tools like axe, pottery and carved stones dug up at the present day Enugu and Ebonyi states establish the credibility of the habitation of Igbo for a very long time. In other words, traditions of Igbo origin favor Igbo genesis in Igboland.

According to Professor Oriji as well as Forde and Jones, the Isu group of the Igbo nation would appear to be the largest in population and seem to occupy a contiguous stretch of land from the center of Igboland expanding to all directions. This implies that the initial Igbo cultural and structural ideas likely evolved from the Isu. Their spread has helped to harmonize the features of the Igbo Cultural Area. In the Orlu section of Isu that claim autochthony for instance, a primogenitor was recollected of the name Igbo Ngidi, who was spiritually and scientifically advanced. He founded Ama Igbo [The abode of the Igbo].