Before the civil war, conversion to Islam for Igbo men resident in the pred
ominantly Hausa city of Kano in northern Nigeria usually meant becoming Hau
sa. More recent converts, however, have retained their Igbo identity and cr
eated an organisation, the Igbo Muslim Community. Three case studies from t
he first group detail the process and criteria of becoming Hausa, including
immersion in Hausa economic and social networks; three case studies from t
he second group demonstrate that, while Hausa-centred networks remain impor
tant, converts have worked to construct new, Igbo-centred support structure
s. The watershed in the changing relationship between religious and ethnic
affiliation for Igbo converts is the end of the war in 1970 and resultant c
hanges in Igbo perceptions of Muslims, and changes in Igbo community struct
ures.