This study explores the relationship between economic development and intergenerational educational mobility across a diverse set of countries. Drawing on cross-national data, we examine how varying levels of economic development influence the extent to which children’s educational outcomes are linked to their parents' educational attainment. The analysis highlights significant differences in mobility patterns between high-, middle-, and low-income nations, suggesting that economic development plays a pivotal role in shaping educational opportunity. Structural factors such as income inequality, public investment in education, and labor market dynamics are also considered. Our findings contribute to understanding the conditions under which education serves as a vehicle for social mobility and inform policy discussions on promoting equal opportunity.