Even though there has been no a description of corruption that all scholars has agreed, in broad terms, corruption may be defined as the abuse of public office for private gain. It encompasses unilateral abuses by government officials such as embezzlement and nepotism, as well as abuses linking public and private actors such as bribery, and fraud. Besides, corruption arises in both political and bureaucratic offices and can be petty or grand, organized or unorganized. Thus, it has become an issue of major political and economic significance especially in recent years and the necessity to take measures against it has become evident both by states and by international organizations. Within these framework in this study, the efforts of international organizations that combat corruption will be discussed.