In this paper, we present new faunistic data of the spider fauna from the Sharr Mountains (Kosovo), one of the least investigated areas in the Balkans. Previously only 27 species of spiders were known from the Kosovo part of the Sharr Mountains but with this investigation, the number has increased to 74. Pictures of rare and interesting species are provided. We also include a new record from the North Macedonian part of the Sharr Mountains. In total we report fifty species, eight of which are first records for Sharr Mountains, twenty-eight are first records for Kosovo, and one species is reported for the first time for North Macedonia. Species recorded for the first time from the Sharr Mountains belong to the following genera: Histopona, Clubiona, Zelotes, Ceratinella, Mughiphantes, Robertus and Ozyptila. We also provide a checklist of spider species for the Sharr Mountains in Kosovo.