This article discusses religion in public space and the case study is Muslim minorities in Sweden. The discussion deals with secularisation trends within Muslim communities in Swedish society in view of the notion of counter-secularisation as a fixed and unchanged form of religious expressions in contemporary public life. What happens in Muslim communities as Muslims of various cultural backgrounds and religious orientations meet and interact in a new secular context? The article argues that, similar to the nineteenth and twentieth centuries, Christian reform movements opened up for a relativisation of faith and thus to a certain extent initiated a secularisation process, a relativisation of faith is at present an ongoing process in Muslim communities in Sweden. Of the three definitions on secularisation, promoted by Jose Casanova, secularisation as ‘differentiation of the secular spheres from religious institutions and norms’, ‘marginalisation of religion to a privatised sphere’, and ‘the decline of religious belief and practices’, Muslim practices in Sweden indicate an adherence to these two first notions of the relation between ‘church and state’. As for the last definition of secularisation; ‘the decline of religious belief and practices’, which has to do with private religious practices, many Muslims would regard themselves as religious without claiming a public role for religion, similar to many Christians in Sweden. Furthermore, many of the traits considered to be ‘religious’, might well be attempts to protect a particular cultural context rather than being signs on increased religion as such.