The Magdalenian (20,500–13,000 cal. BP) is an important period for the cultural evolution of societies in the European Upper Palaeolithic. It is characterized by a great increase in settlements and products, probably reflecting demographic growth. Along with other material evidence, symbolic products (art and ornaments) clearly expand. In association with the multiplication of representations, some of them become highly normalized (included geometric signs) whereas others develop a great diversity of forms (such as human depictions).The density of sites and more-or-less normalized products make possible an original spatial interpretation, that is probably unprecedented for Palaeolithic societies. Beyond highlighting the diffusion of some concepts over long distances, these rich data allow a deeper analysis of exchange, influence, and non-influence connections. Consequently, the question arises of the identification of what can be called “territories” (spaces built and delimited by human occupations) or “symbolic territories”. We define “symbolic territories” as spaces without visible material frontiers, symbolic through the weight of the ideas, the shared social norms and the installation of concepts by the societies in their close environment.We propose to examine this question through the prism of symbolic productions: body ornaments, portable art, rock art. Thousands of pieces of symbolic evidence assigned to the Magdalenian and a better stratigraphic definition for this period offer a favourable context for discussing the social implications of the results of several analyses: the distribution of themes in space, the presence of types of sign or figurative subjects contained in a narrow space, the identification of individual images and collective graphic norms. Comparing these approaches to series from the Middle and Upper Magdalenian, in which the evidence is the most abundant, will allow us to consider the nature of perceptible “territories”. Then we will question the relationships between human groups through identity and mechanisms of otherness in Magdalenian societies.