Full descriptions of the kinship terminology of the Ibo of south-eastern Nigeria are rare. One important reason for this is that, although the basic principles of kinship organization are similar over much of the Ibo culture area, terminology reflects, on the one hand, the extreme degree of dialect variation and, on the other hand, local variation in details of the kinship organization itself. Such variations occur sometimes over a very few miles. Certainly there is no single Ibo kinship terminology; there is only in a broad sense one southern Ibo terminology; while the area which can be said to have one terminology in the narrowest sense of an absolute identity of every term is often very restricted. Although this situation may be confusing to the investigator, it is not necessarily so to the Ibo. Every Ibo is conversant with kinship terms within and often far beyond the radius in which he may seek a wife, just as he is aware of dialectal variations in any other field of terminology. Thus it is that terminology in the literature has tended sometimes to be dialectally eclectic as well as incomplete. The growing body of publications in Ibo, both in the Onitsha and the Central dialects, also illustrates this tendency when kinship relationships are mentioned. It would therefore seem to be worth while to record one specific system of terminology in detail, within the social context of its area.