Inequalities invariably intertwine with migration. On the micro-scale, socio-economic inequalities shape the propensity to migrate. On a macro-scale, South-North and East-West dynamics act as migration drivers. Recent mobility-related debates include inequalities as developmental outcomes of migration, as an implication of social and economic remittances, and as an issue to be addressed by public policies. Inequality-related challenges are also discussed in the context of gender, ethnic and racial disparities, urban segregation, or labour market segmentation in receiving countries. Inequalities intertwine with migration knowledge production. Postcolonial power relations determine who gets to define the research agenda, who receives research funding and, consequently, who gets to theorise migration knowledge.