This chapter reviews that retrospectively and prospectively examines academic and policy research on global migration governance (GMG). There are distinct policy regimes for the general category of migration, each comprising shared understandings, governance actors, and specific norms and practices. For instance, the refugee regime is well-formulated and involves traditional multilateralism. While treating GMG according to different policy fields will continue to generate important research, much contemporary international migration is defined by mixed migration. The literature on GMG involves academic debates and theoretical pluralism, both signs of a maturing literature. Though GMG reveals a convergence of shared understandings about the blurring of different categories of migrants, their mixed motivations for departure, and the need for new practices (particularly international cooperation), debate remains about distinguishing forced from voluntary migration within mixed migration flows.