Among European countries, Croatia stands out for its distinct diversity of flora and fauna, and on Velebit, as the largest Croatian mountain, numerous animal species find suitable habitats. In order to ensure long-term the survival of animal species, constant researches are needed as the basis of nature protection management plans. The aim of this paper was to make a systematic review of the researches of the Velebit Mountain fauna on the basis of available publications. This included determining the total number of recorded and endemic species and comparing the research of individual taxonomic groups in order to contribute to better knowledge and protection of the Velebit fauna. Using Google Scholar, as well as Hrčak and Dabar databases, 170 publications have been collected. In analysed publications, 977 animal species were recorded, among which the most numerous were pigean invertebrsates (596). A total of 74 endemic animal species were recorded, most of them subterranean (41). The analyses also included the time period (decades) in which the studies were published and the type of publication. The most publications, except for birds, were published in the second decade of the 21st century. In the future, it is necessary to continue investing in studies of the Velebit Mountain fauna, especially of endemic and endangered species. This paper sets guidelines for future research, which will further contribute to better knowledge and more effective protection of the Velebit fauna as well as the overall biodiversity of Croatia.