The unrestricted movement of data is a key enabler of the digital economy. However, the development of data protection and data localisation policies is becoming one major area of concern for international trade and investment. Among the mechanisms for protecting individuals is data localisation. This requires that data or a copy thereof (both personal and non-personal) should only be stored and processed locally and should not be exported for processing. The import of this, for instance, is that all data generated within Nigeria must be confined to the boundaries of Nigeria, effectively restricting the flow of data. While localisation of data has significant economic and social benefits, it is also associated with several unintended (negative) consequences, especially from an economic perspective. This is especially true for developing countries like Nigeria that is moving towards greater data localisation with several policies skewed in that direction. This contribution briefly examines the implications of Nigeria’s increasing move towards data localisation on its regional obligations for the promotion of free trade in Africa.