In the age of migration, the inclusion of immigrants in national politics is crucial for democratic reasons, and because it increases the coordination and cooperation ability of society. The informal norms, values and beliefs of the political culture are one aspect of the institutional and discursive opportunity structures immigrants face as ethnic and religious minorities. The article analyzes the Danish political culture with regard to the potential barriers it has for the inclusion of immigrants in national political life. It finds that the predominantly liberal, secular and republican character of the Danish political culture excludes certain kinds of cultural and religious identities and interests at the symbolic discursive level, while Danish political culture may in fact provide more openness at the practical and institutional level. However, the question, whether or not Danish political culture is able to deal adequately with cultural and religious diversity, remains.