Spatial identities are phenomena that represent the uniqueness of a certain area, that is, its population. They are created by a combination of different natural and social factors and their interaction. Due to the specificity of the factors, spatial identities can be complex and differently expressed, as is the case in the area of Livanjsko polje and Buško blato. The aim of the work was to determine the regional identity of the population of the mentioned area, since the observed stratification of spatial identities is conditioned above all by complex historicalgeographical processes. The objective and subjective elements of the identity of area and spatial identity are studied through the basic natural-geographic features and social events and administrative-territorial organizations at the civil and religious level throughout history. Cartographic sources relevant to the researched area were studied, with the help of which it was possible to determine the approximate administrative-territorial reality or contemporary understandings of belonging to the area. The opinion of the local population on their own spatial (regional) identity, the formative elements of their spatial identity and identity similarities with the neighboring population and areas were investigated by means of a survey. The complexity of spatial identities was determined, with a pronounced presence of subregional or native identity in the entire researched area. The population of Livanjsko polje and Buško blato is in a zone of ambivalence permeated by the influences of Bosnian and Herzegovinian regional identity, which are more present and stronger in the northwestern part of Livanjsko polje and in the southeastern part, i.e. Buško blato, while their influence together with the subregional spatial identity is equally represented in the central area. This kind of research was conducted for the first time in the area of Livanjsko polje and Buško blato and represents the basis for future research on spatial identities in Bosnia and Herzegovina, i.e. transitional zones of Bosnian and Herzegovinian regional identity.