Although all religions demand their believers to be a single community at the highest level, it is well known that religions differentiate into subgroups such as denominations, sects, and cults throghout time. In the emergence of these groups, along social, political, economic and cultural factors, controversial circumstances and key disputes in belief, worship, organization, and management are also seen. Whatever the reason, it is a fact that there are some religious groups in the society and these have some influence on the individual and society. The way individuals perceive and live religion and their mindset do not form instantly but over a certain period of time. The structures, attitudes and conducts of religious groups have shaped likewise not in an instance but throghout a historical process. In this sense, just as individuals are influenced by the political, economic and cultural conditions,of the society, religious groups are also affected and structure themselves accordingly. For this reason, in the present study societies considered to be religious groups since the foundation of the Turkish Republic were analyzed according to the internal and external structures and the underlying reasons and results of their structuralisations were ananlysed.