It is generally thought that processes of modernization generic to industri
alized societies have resulted in a process of secularization with respect
to conventional religious participation and observance in most Western coun
tries. It is not at all clear, however, whether the post-communist societie
s of Eastern Europe have followed this pattern. In this we paper we examine
whether levels of religiosity in ten post-communist societies - five gener
ally Catholic in orientation and five Orthodox - are consistent with secula
rization theory, or whether instead they display, as some have suggested, t
he impact of seven decades of atheistic communism followed by a recent resu
rgence among the young. For this purpose we examine denominational membersh
ip and church attendance using descriptive and multivariate analysis of lar
ge-scale national sample surveys conducted in the mid-1990s. We find that a
ge and educational differences in participation rates follow patterns expec
ted on the basis of secularization theory with no evidence of resurgence am
ong younger groups. Also, however, Catholic participation rates are signifi
cantly higher than Orthodox ones, indicating the importance of denomination
in understanding patterns of religiosity in the post-communist context.