Nationalism being an issue which has always commanded society's attention, it would be fitting to analyze this concept from a scientific angle. How can it be defined and what principles does it entail? How far does Islam accept these principles? Is there any incompatibility between Islam and nationalism? Can an individual be a Muslim believer and a faithful nationalist at the same time? What are the weak strong points of nationalism? What has been the historical course of the birth and spread of nationalism in Islamic countries? It is by means of research and investigation and far from tumultuous propaganda that it becomes clear whether nationalism has a place in a society where an Islamic revolution has taken place in a society which is decided on establishing Islamic values and an Islamic order.