Truth is considered as an important concept in the modern architectural discourse as it appeared explicitly within the theoretical statements and the practices of Modern Movement. This research explores the concept of (Truth) in Modern Architecture to clarify the items on which it is based and how it is produced in architectural artifacts. However, this study concludes that (Truth) is a relative concept and it is based on two types of items (conceptual and formal). These items and their related mechanisms are explored empirically in selected works from Modern Architecture. It is concluded that those items and mechanisms were varied regarding the clarity of occurrence and the mechanisms used to imply the concept of (Truth) the selected works
Key Words: Truth, Sincerity, Frankness, Modern Architecture, Truth Architecture