International audienceThis article focuses on the integration and distancing process of persons designated as Roma in a market space appropriated by North African immigrants. It is based on fieldwork in a marketplace called “l’Oued”, in the outskirts of Nice, structured both by the history of North African immigration into the city and by a logic of segregation. The presence of Roma vendors and shoppers in “l’Oued” leads to numerous encounters that question the ways in which interethnic relations and boundaries are constructed and expressed in situations of co-presence. We shall see how the integration of Roma in this market reflects logics of inclusion and exclusion, which depend on both the spaces they invest (illegal market, fairground m...