Abstract: The present work is devoted to the treatment of the histerid beetles (Histeridae) preserved in the National Museum of Natural History, Sofia. The collection comprises 59 species belonging to 26 genera. The studied material is collected from Bulgaria, Greece, Turkey, Slovakia and Macedonia. New for the Bulgarian fauna are 5 species and 2 genera. Another 10 species are confirmed for the fauna of the country. New distributional data are provided for 32 species.