Prepared by Assistant Lecturer Zaid Abdul Wahab Razooqi Monopoly is considered one of the economic phenomena with significant legal dimensions, attracting the attention of legal scholars and modern legislation due to its direct impact on market freedom and competition. Monopoly refers to the exclusive control exercised by a natural or legal person over a specific economic activity, whether in the production of goods or the provision of services, enabling them to influence prices or restrict competitors from entering the market, which ultimately leads to economic imbalance. From a legal perspective, monopoly is not considered unlawful in all circumstances. It may be legitimate if it is based on a legal foundation, such as state-granted concessions or patents intended to encourage innovation. However, the legal problem arises when this monopolistic position is exploited in a manner that harms competition, such as excessively increasing prices, reducing product quality, or excluding competitors through unlawful means, which constitutes a violation of the principles of economic justice. Monopoly takes various forms. It may be a natural monopoly imposed by the nature of the economic activity itself, as in certain public utilities where multiple service providers are impractical. It may also be a legal monopoly granted by the state to achieve public interest. Meanwhile, unlawful monopoly is considered the most dangerous form, as it arises from anti-competitive practices such as secret agreements between companies or abuse of a dominant market position. The effects of monopoly are clearly reflected on both the economy and society, as it leads to higher prices and lower quality due to the absence of competition. It also limits innovation and negatively affects market efficiency. From this standpoint, modern legislation has intervened to establish legal controls aimed at preventing monopolistic practices and protecting free competition, which is regarded as the cornerstone of a market economy. In Iraq, the legislator has addressed this issue through the enactment of the Competition and Anti-Monopoly Law, which aims to promote a fair economic environment and prevent agreements that restrict competition or harm consumers. The law grants competent authorities broad powers in monitoring, investigation, and imposing penalties on violators, including fines and legal measures that ensure the restoration of market balance. Combating monopoly is not limited to the legal aspect alone; it also extends to economic policies that support competition, such as encouraging small and medium-sized enterprises, preventing excessive economic concentration, and promoting transparency in commercial transactions. In addition, spreading legal awareness among individuals and institutions is considered a fundamental factor in reducing this phenomenon. In conclusion, monopoly represents a real challenge to achieving economic justice, which requires combined legislative and regulatory efforts to ensure a fair and competitive market. The more effective the legal framework becomes, the more stable and efficient the market will be, positively reflecting on economic development and the protection of consumer rights.