While policy transfer studies traditionally observe top-down processes (Delpeuch 2009; Stone 2012), this paper analyses an original circulation of a territorial policy: the intercollectivités[1] in eastern Paris region, Mali and the Comoros. Through a triangular analysis of their creation, this paper proposes a convergent review of decentralization literature in Europe and Africa. I question the consequences of national decentralizations on both politics and policy accessibility, whilst new policy models are transferred by diasporas linked to two countries (Comorian and Malian communities in eastern Paris).Data were gathered through a mixed methodology (about 20 semi-structured interviews, observations, and archival processing). This comparison between France, Mali and the Comoros allows to scrutinize the appropriation of decentralized local and sectoral public policies in various contexts. Using the ‘translocal’ concept drawn from migration studies (Smith and Guarnizo 1998, 10), I argue that new spaces of policy circulation can be found probing the political co-presence of diasporas: local —yet transnational— actors in their places of residence and origin.The paper is structured by the combine analysis of decentralization processes, and of organized diasporas, both key to the circulation of decentralized policies.- With a socio-historic standpoint, the first part analyzes the decentralization processes that put villages and cities at the center of local policy making (Fay et al. 2006). In the three study fields, an interdependence between local authorities and diasporic organizations needs to be assessed. While Malian and Comorian diasporas are known to play a key role in national and local policies of their country of origin, their role in France is far less studied. In Paris suburb cities, with important foreign population, local authorities develop strategic relations with diasporic organizations to foster their political base (Soukouna 2016).- The second part examines how diasporas can be seen as new actors of international policy circulation. I articulate diasporas’ agendas in their countries of origin with the creation of the intercollectivités in France, Mali and the Comoros. The relations between diasporas and French local elected officials allowed diasporas to become policy-making actors in their country of origin, with local and international resources acquired in their country of residence.While questioning how diasporas can be seen as new actors decentralized policies transfer, the paper enlightens new sub and trans-national decentralization procedures, bridging European and African decentralization analyses and literatures.< Réduire