Modernism is one of the most important architectural movements of the last century. However, in comparison to the Western World, this movement occurred with a notable delay in Iran. Although, the Modern Movement in Iran started in the Qajar era, it did not reach its peak until during the first and second Pahlavi eras. Establishment of the Faculty of Fine Arts in University of Tehran in 1941 had a remarkable impact on this movement in Iran. The graduates of the University of Tehran and those from the European Universities also played important roles. This presentation is a brief overview of the Modern Movement in Iran during the Qajar and the Pahlavi dynasties.