The Diffuse Cities & Urbanization Network (DCUN) is an international research network of academics and urban professionals sponsored by the research federation « LABEX Urban Futures ». The network brings together several research laboratories from the federation (AUSSER, Lab’URBA, IFSTTAR, SPLOT/LVMT, and LEESU) and foreign partners. It aims to build up a scientific community researching on the global diffusion of urbanization in a comparative perspective.