Migration has become a critical issue for cities’ international engagement as most migrants live in cities, and local governments are increasingly responsible for supporting them. This ‘city diplomacy’ encompasses the ways that cities are working individually and through formal transnational networks to become influencers of global agendas, as opposed to just implementers of national policy. This timely book shows how the international engagement efforts of Bristol, UK and Montreal, Canada have been shaped by their strong history of migrant inclusion. Exploring co-dependent globalization and urbanization, this book shows that cities have a significant role to play in global migration governance.