EtymologyRastislav is a Slovak masculine given name derived from the Slavic elements orsti “to grow” and slava “glory.” It is therefore a cognate of the Czech Rostislav, the Russian Rostislav, and the Ukrainian Rostyslav. All ultimately descend from the Old Slavic Orstislavŭ. The name conveys the meaning “he who grows in glory.”Historical and Cultural SignificanceThe most prominent bearer is Saint Rastislav of Moravia (died after 870), the second ruler of Great Moravia from 846 to 870. He is remembered for his resistance to Frankish influence and for inviting Saints Cyril and Methodius to evangelize the Slavic peoples, which led to the development of the Glagolitic alphabet and the spread of Christianity in the Slavic liturgy. For his contributions, he is venerated as a saint in the Eastern Orthodox Church.In modern contexts, the name is used in Slovakia and among Slovak diaspora. Notable contemporaries include Bishop Rastislav of Prešov (born 1978), a Slovak Eastern Orthodox bishop, and diplomat Rastislav Káčer (born 1965). The most historically significant modern bearer is Milan Rastislav Štefánik (1880–1919), a Slovak politician, diplomat, and astronomer who played a key role in the establishment of Czechoslovakia. In sports, the name appears among Slovak footballers, ice hockey players, and athletes.Variants and DistributionWhile Rastislav is exclusively used in Slovak, the Czech equivalent is Rostislav, and the name is also used in other Slavic countries with variant forms. The related Rastislalić family was a 14th-century Serbian noble family, indicating historical breadth beyond West Slavic regions.Meaning: “Growing in glory”Origin: Slavic (orsti + slava)Type: Given nameUsage regions: Slovak, Czech, Russian, Ukrainian