Recent years have witnessed a rapid increase in land grabbing in several regions of the world. Land and other related items have been appropriate in a global race whose dynamics have resulted in expropriations, human rights violations, food insecurity, among others. The main objective of this dissertation is to analyze the initiatives of international organizations for the global regulation of investments on land and to discuss their effects on the land grabbing phenomenon at the beginning of the 21st century. To this end, this study seeks firstly to advance the understanding of the land grabbing phenomenon, understood as appropriation of land, an idea that is directly linked to the parallel processes of accumulation by dispossession and reproduction of capital, according to David Harvey s concepts, and to recent transformations in world economy and politics, which contributed to the contemporary race. This perspective is complemented by assumptions and concepts of neogramscian critical theory of International Relations, which explain how the global governance of the period is intertwined with a dominant development model. The global governance of the land grabs is analyzed by focusing on two multilateral initiatives, launched by the World Bank and UN agencies. The concepts of new constitutionalism and market civilization are essential to note how international organizations have been allied in the process of commodification of nature, in governance ruled by a neoliberal discourse and coordinated by market discipline and political power. It is argued that such organizations, through their land governance initiatives, legitimize land appropriations and contribute to depoliticizing the land grabbing debate.