The concept of diversity, as the central concept of the discourse of multiculturalism, has become common in Canadian politics and cultural life. This is so much the case that even the corporate sector has adapted its talk of profit to multiculturalism and diversity, while the Canadian government and public institutions have set up major administrative bureaucracies in their names. The population itself which is coded as “multicultural” or “diverse,” as opposed to “Canadian,” has organized itself in various governmental and non-governmental agencies, merging these notions with those of the community and ethno-cultural identity. We have versions of multiculturalism-diversity discourse in our everyday language and various types of scholarship, including theorizations based on multicultural feminism and feminist politics of diversity. This article explores critically, the composite discourse of multiculturalism and diversity from a feminist anti-racist perspective. It intends an epistemological critique of diversity as discourse in its materialization as multiculturalism in a comprehensive ideological and political sense. My particular point of entry lies in this discourse's definitional power over non-white women living in Canada, with regard to their ideological and socio-political locations and constructions. I have sought to accomplish this by inquiring into the contradictions or paradoxes inherent in the epistemology of diversity, with the purpose of uncovering “multiculturalism” as what Dorothy Smith (1990) has called a “ruling category,” or Louis Althusser an “ideological state apparatus” (1971).