Knowledge on the zoogeography of the amphibians of Croatia, as well as on their ecology, has been rather scarce and based on papers dealing with this subject in the framework of the research about the distribution of amphibians and reptiles in Croatia, without going deeper into the zoogeographical issues. This is quite understandable since the knowledge on distribution and composition of amphibian fauna for many parts of Croatia has been insufficient, regardless of the fact that mainly unsystematic explorations were conducted already since the 19th century. It is only recently that enough data have been collected to enable the production of more precise distribution maps of amphibian taxa. This thesis gives precise distribution maps for each amphibian taxon, compares similarities in composition of amphibian fauna among various climazonal vegetation belts in Croatia and among various biomes. Beside ecological valences of each taxon, in Croatia recent distribution was largely influenced by Pleistocene and post-Pleistocene migrations. Based on analyses of distribution of Croatian amphibian taxa and their distribution in Croatian mesoregions, and analyses of their connection to certain ecological parameters, and by connecting those results with palaeonotological finds and results of the latest phylogenetic and pylogeographic research, this thesis proposes division of Croatia into six zoogeographically distinctive areas for amphibians.