In recent years, there has been a growing interest in the nature of intergenerational relationships in immigrant families, especially between immigrant parents and their children, many of whom were born and largely raised in the United States. This review begins with an analysis of the causes of tension and conflict as well as accommodation and cooperation between parents and children in immigrant families in the contemporary United States. We then examine what happens when parents and children are separated in transnational families why this pattern occurs today and how it affects family relationships. We provide a historical-comparative perspective, discussing what is new about parent-child relations in immigrant families today in contrast to a century ago in the last great wave of immigration to the United States. Finally, a cross-national view reveals the different emphases in the social science literature on intergenerational relations in immigrant families in the United States and western Europe.