In recent years, the United Arab Emirates has begun creating artificial islands in the Persian Gulf. These actions have sparked many concerns throughout the region, particularly from Iran. This study defines and analyzes the process of securitizing the creation of the UAE artificial islands in the Persian Gulf. Although, according to the Law of the Sea Convention, coastal states are entitled to create artificial islands, observing neighboring states’ interests are a primary prerequisite for creating these lands. This study seeks to answer the following question: What are the consequences of the UAE creating artificial islands in the Persian Gulf for Iran? The hypothesis of this paper proposes that creating these islands, regarding the expanding nature of the concept of security in the contemporary world, will have a fivefold consequence for Iran; creating artificial islands by the UAE will cause military, political, environmental, economic, and social insecurities for Iran in the Persian Gulf. The research follows a descriptive-analytical method and studies the question utilizing library sources. The Copenhagen School of Security Studies constitutes the theoretical framework of the paper.