LIRE dataset (Latin Inscriptions of the Roman Empire) is an aggregate of EDH and EDCS epigraphic datasets, focusing on inscriptions which are (a) geolocated, (b) within the borders of the Roman Empire in its highest extent, (c) dated (d) in the dating interval intersecting the period from 50 BC to 350 AD. In version 1.2, the dataset consists of 136,190 records and 112 attributes. There are 48,801 inscriptions shared by the EDH and EDCS, inheriting attributes from both parent collections. Further, there are 3,907 inscriptions recorded exclusively in EDH and 83,482 inscriptions originating solely from EDCS. In cases in which an inscription is available only in one dataset, it contains attributes only from that one dataset. We publish the dataset as one geojson file. The scripts used to generate the dataset and their metadata are available via GitHub: https://github.com/sdam-au/LIRE_ETL.