European social democracy has gone through a number of profound transformations since the second half of the 20th century in terms of electoral fortune, ideological orientation, and electoral appeal. In spite of competing in different political contexts and responding to a variety of ideological challenges, social democratic parties share a homogeneous ideological orientation, at least when their aggregate positions are considered. The aim of this study is to portray the differences between 14 European social democratic parties on a number of relevant policy issues.