Semi-presidentialism has become an increasingly popular form of government worldwide and has emerged as the most common regime type in Central and Eastern Europe and among the post-Soviet states. An often identified - although rarely empirically addressed - peril of semi-presidentialism is the risk of intra-executive struggles between the president and prime minister. This study analysis the trend and issues of intra-executive conflicts in eight semi-presidential (premier-presidential and president-parliamentary) countries in Central and Eastern Europe: Bulgaria, Croatia, Lithuania, Moldova, Poland, Romania, Russia, and Ukraine. By utilising expert survey data as well as indicators derived from documentary and literature analysis, 76 instances of intra-executive (president–cabinet) coexistences between 1991 and 2011 are examined. The results show that intra-executive conflict has been a frequently occurring phenomenon under both types of semi-presidentialism, and one that has persisted on similar levels throughout the post-communist era. In addition, and quite unexpectedly, we find that the character of conflicts have only slightly changed from being predominantly power struggles over formal rules and competences to being more issue specific and policy oriented.