Confessionalism (Arabic: محاصصة طائفية muḥāṣaṣah ṭā’ifīyah) is a system of government that refers to de jure mix of religion and politics. It typically entails distributing political and institutional power proportionally among confessional communities.
Proponents of confessionalism cite it as an effective way to secure the peaceful co-existence of diverse religious and ethnic communities by empowering each according to its "weight" in the region. However, critics point out that such a system may actually deepen conflict between ethnic groups. They argue that whichever group holds the most political power may use government to favour itself at the expense of other groups, or even to oppress rival groups. Also, as demographics change, the positions and power held by a particular group may no longer appropriately reflect the size of that group.
Debate over confessionalism raises similar issues to those facing consociationalism, of which confessionalism is one kind.
The repartition of assembly seats on a confessional base in the Middle East was inaugurated by the Ottoman Empire (e.g. in the Ottoman Parliament) and went on in several post-Ottoman countries with reserved seats for non-Muslim (Christian) minorities (Syria, Jordan, Iraq ), or for all religious communities including Muslim subgroups and Christian churches (Lebanon). A similar system prevails in Iran for the Armenian, Assyrian, Jewish and Zoroastrian minorities.