Data on secondary school children in England, Germany, the Netherlands, and Sweden show that large differences exist in family structure within the minority population: In some groups, father absence is more common than among natives; in others, it is less common. These patterns reflect the differences in family structure in the origin countries, but the migration process also plays a role. Next, it is found that father absence has negative effects on immigrant children’s well-being, but these effects appear weaker in minority groups where father absence is more common. Heterogeneous effects are interpreted in terms of different degrees of institutionalization of father absence in different minority groups. (Author abstract)