The subject of this study is the rock tombs in Onar village, which is located fifteen kilometers from the town of Arapgir and five kilometers east of the road. Despite the lack of knowledge about the region's ancient history, it is likely that the region developed alongside with Malatya province until the Roman period. Indeed, hundreds of mounds and archaeological sites within the boundaries of Malatya province reveal the importance of the region's history. Excavations in Cafer Hoyuk, Degirmentepe, Imikusagi, Arslantepe, Pirot Hoyuk, and Semsiyetepe have exactly disclosed that historical settlements of Malatya had continued uninterruptedly from the Neolithic age into the classical era. Therefore, it is no surprise to see that significant settlements have been identified in and around Malatya province from the era of Assyrian Colonies of Trade, Hittite and Late Hittite periods, the Medes, the Persians, Hellenistic kingdoms, and under Roman rule, respectively. The aim of this study is to present the necropolis in Onar village, a less commonly known site which can serve as a good example of Roman rock tombs in Malatya region.