The monograph is focused on Slovak spider names recorded in our country, on the history of Slovak names and basic rules of zoological nomenclature. Moreover it briefly discussed spider ecology and phylogeny, and is also a guide to Slovakian spider families. In the history of the Slovak language was largely suppressed, therefore the formation of the Slovak spider nomenclature was more or less confined to a few common and remarkable species (e. g. Araneus diadematus, Tegenaria domestica). First Slovak spider names appeared in the second half of the 19th century in natural history schoolbooks. Improvements of the Slovak nomenclature continued in 20^th century by translators S. Klima, R. Klačko, A. Gutteková, I. Zmoray and others. The first important milestone in Slovak spider nomeclature was made by O. Žitnanská in the encyclopedia “Z našej prírody” (1981) presented 29 species. Next significant changes of Slovak nomenclature formed mostly in the last decade. One of the meaningful, although unpublished work, is the bachelor thesis by Korenko (2004), which listed Slovak names for 62 species and 20 spider families. However most of the names seems to be influenced by Czech nomenclature by Kůrka, Kovařík(2003). He publicized all his names and thesis on his website, which included family determination key. Thanks to this page Slovak spider names of species and their families has been available to the general public. Few years later came out the monograph about High Tatras, which listed Slovak names to 65 species (Svatoň, 2010). No other publication influenced Slovak spider nomenclature from that time. In conclusion, we found out 153species with Slovak names, represented approximately 16% of our arachnofauna. From all known Slovakian families only six lacked Slovak name. Interestingly, numerous variations of Slovak names were used dominantly for well-knownspecies e. g. Araneus diadematus, Argiope bruennichi, Teganaria domestica,Argyroneta aquatica, Dolomedes fimbriatus and Salticus sceniscus. Here we presented971 Slovak species names and 39 Slovak family names of our spiders. Additionaly to Slovak names we made an overview of scientific synonyms used in Slovak publications and known dubious names. Moreover the book offers to readers essential information and many interesting facts about spider families known from Slovakia.