This article examines the relationship between religiosity and support for democracy in Bosnia-Herzegovina. Using data from the last World Values Survey, we examine levels of religiosity among Bosniaks, Serbs, and Croats, and their support for democracy. The influence of religiosity on support for democracy is also explored. The results indicate that religiosity has a negative influence on support for democracy, and it is particularly true for individuals who do not support the separation of the religious from the political sphere and who exhibit lower support for democracy. The article also examines different levels of religiosity among the three groups, controlling for a wide range of variables. We conclude that there is basically no difference in support for democracy between Croats and Bosniaks, while Serbs exhibit somewhat lesser support for democracy than members of the other two ethnic groups. Serbs also seem to be somewhat less religious than Bosniaks and Croats. Opposition to separation of the religious from the political sphere is a major source of lack of support for democracy among Croats and Bosniaks, but not among Serbs.