The introduction locates Victorian migrations in global migration history and accounts for the specificity of international migrations in the Victorian era. It offers a discussion on migration trends, including assisted migration schemes, and proposes to unveil the diversity of Victorian migrants’ backgrounds. A discussion of national identity introduces the transnational approach at the core of this volume. The historiographical focus reveals the diversity of approaches to Victorian migrations, which used to focus on imperial matters before taking into account the migrants. Focussing on connections and circulations, this volume’s transnational framing highlights the spatial and ideological exchanges between Britain and the world, beyond material and geographical frontiers.