It is obvious that the subject of the civil society at the Arabic countries in general, and in Iraq in particular, was not apparent as a social and political practice and reality. As soon as the change took place on The 9 April 2003, the civil society organizations have been largely spread, in addition to what is circulated about the active role the civil society is supposed to have in political-decision-making, the political culture that stems from the direct relationship between the civil society and democracy. As long as there is a valid and participating role to the civil society in the democratic process, that will be reflected positively at the democratic experiment the thing that makes it a successful experiment, and vice versa. Consequently, and as a response to the New Iraq reality, the title of the research is, "The Civil Society in Iraq After 2003 and its Role in Building Democracy". The research relied upon more than one approach in completing the research requirements. I adopted the historical approach, was adopted, the descriptive approach, the systemic analysis approach, the legal constitutional approach. The research came into three parts: the first part is dedicated to explain what is the civil society and divided into three chapters. The first chapter talks about the development of civil society in the western thought, so as to introduce a summary about the stages and transitions of the concept of the civil society throughout the philosophical, social, and political thinking. The second chapter came to explain the civil society in the Islamic thought by looking at the origins and principles of Islam and how much they harmonize with the principles and values of the civil society through proceeding research on two standards; the theoretical standard and the practical applied standard. The third chapter explain the conceptual frame of the civil society at the light of the definition, characteristics, contents, and objectives of the civil society. The second part brought up the theme of civil society and democracy. This part holds three chapters: the first one talk about the relationship between the civil society and the state with what it represents of intersection and integration. The second chapter talks about the relationship between the civil society and the political culture through illustrating the tools and mechanisms those form the work basis of the civil society and the role they play to enrich individuals with political culture by mentioning the political culture notion, it's elements, types, and its relation to the civil society, then explaining the functions of the civil society in anchoring the democratic culture. The third chapter covered the relationship between the civil society and the political participation. It explains the notion of the political development, the political participation, and the connection between the civil society and the political participation. Finally, the third part concentrated on the role of the civil society in the democratic transition after 2003 in Iraq. The first chapter talks about the relationship between the civil society and the state before and after 2003. The second chapter talks about the relationship between the civil society and the political culture in Iraq by showing the structure of the Iraqi people, and showing the role of the prevailing sub-cultures; tribes and religious references – Shia and Sunni - and their connection to the political culture, the prevailing patterns of the political culture in Iraq, and the role of the civil society after 2003. The last chapter was all about the relation between the civil society and the political participation by mentioning the reality of the political participation before 2003 in Iraq, the deterioration of the political participation after 2003, showing the images of the political participation and the role of the political participation in them.