Henryk Jankowski’s historical-etymological dictionary of pre-Russian habitation names in Crimea (Henryk Jankowski, Historical-Etymological Dictionary of Pre-Russian Habitation Names of the Crimea, Brill, Leiden, 2006) contains toponyms of approximately 1,300 unique habitations that existed in this region prior to the Russian annexation of 1783. The Historical Gazetteer of Crimea (HGC) is an open-access georeferenced database of historical places derived from Jankowski’s work. The HGC includes 135 habitations, 43 districts, 6 provinces, and 17 rivers shown on the map accompanying Jankowski’s work. See the "HGC Description" document contained in this repository for details. The authors encourage students, researchers, and the public to use HGC materials in their investigations of this historically and currently critical region of the world. To this end, all HGC materials are being made available through a Creative Commons CC0 1.0 Universal Public Domain Dedication license. For geographers and historians in general, the HGC also constitutes an example of an approach to creating an open-access georeferenced databases of historical places. A video describing how to use this dataverse is available at: https://youtu.be/Vf0dhAAhAV0