In the context of globalisation, European languages, especially English, continue to be the favoured medium of official communication and are valued and promoted as the dominant languages of commerce, international communication, education and scientific knowledge. In this paper, I argue that European educational language medium policies perpetuate the hegemonic influence of western languages and their corresponding forms of knowledge. I further argue that these policies have also devalued and marginalised indigenous languages, knowledge systems and cultural identities in sub-Saharan Africa. I explore the social justice implications of these policies for indigenous language communities in the region. (Contains 10 notes.)