<p>To conserve and manage terrestrial sympatric predator species, it is essential to understand the mechanisms that ensure their coexistence. In the present study, we used camera traps to survey the spatiotemporal activity patterns of carnivore species of different body sizes. The devices were deployed between July 2017 and June 2019 for a total of 5,279 camera-trap days at State Hunting Area “Rositsa”, Central Bulgaria. We identified 875 independent records of the target predators. The aim of this study was to examine the spatiotemporal patterns of the sympatric terrestrial carnivore mammals: brown bear (<i>Ursus arctos</i>), grey wolf (<i>Canis lupus</i>), golden jackal (<i>Canis aureus</i>), red fox (<i>Vulpes vulpes</i>), European badger (<i>Meles meles</i>), European wildcat (<i>Felis silvestris</i>) and <i>Martes</i> spp. We hypothesised that limited spatial co-occurrence and low overlap would be observed between the two apex predators, the brown bear and the grey wolf. According to the mesopredator release theory, we expected to observe lower overlap between the red fox and the golden jackal than between the red fox and the grey wolf. We also hypothesised that among smaller predators there would be greater spatiotemporal overlap, as well as varying degrees of overlap with the larger carnivores. The results revealed a positive correlation across most species. Our supposition regarding the brown bear and the grey wolf was confirmed. We found low spatial overlap in the use of studied sites between them and “moderate” to “high” temporal overlap. Our expectations regarding Canidae species were only partially confirmed. The results showed spatial and temporal separation of the red fox from the grey wolf and the golden jackal. Conversely, we observed a high spatiotemporal overlap between grey wolves and golden jackals. Our hypotheses were also confirmed regarding the smaller carnivore species and their spatial and temporal patterns. We also found a very weak negative correlation between them and golden jackals. Carnivores exhibited more variable diel activity patterns during the colder months. Throughout the study period, the golden jackal and the European wildcat were cathemeral, while the <i>Martes</i> spp. were nocturnal. The brown bear was crepuscular-nocturnal during colder months, but cathemeral during warmer ones. The grey wolf and red fox were nocturnal during the colder months and cathemeral during the warmer ones. The European badger was also nocturnal during colder months, but it was crepuscular-nocturnal during the warmer months. Further research into the species’ activity patterns and temporal overlap could provide a deeper understanding of the mechanisms enabling coexistence in the study area. Different methods and long-term monitoring need to be used to achieve this by examining areas of greater correlation and overlap.</p>