Under the influence of variable factors names are applied on places and they may refer to different subjects. Toponyms are associated with the national identity and the historical background of a society. They convey information about culture, history, and literature of a region, and similar to that of political, social, economic, and cultural events, they express aims, tendencies, insights and revenues of people, groups, societies and lands. Therefore changes and developments in a terrestrial have effects on naming the places. Changes in a society can be studied based on the changes through names. Typology of toponyms as an etymological study of geographical names has an important role in identifying names, the study of historical and cultural facts. Iranzamin (lranshahr), with a variety of subjects, encompasses toponyms in numerous species and subspecies. Consequently, recognizing toponym species has a great importance in historical studies, especially from social and cultural history point of view. Present article tries to determine the structure of historical and geographical typology and also to categorize variable toponyms based on the namingsorigin.