The Slavic name Radvan originates from the name of the village Radvaň, located on the Laborec River in the Medzilaborce District of Slovakia, which is first mentioned in 1379. There is also the urbanonym Radvanka, which is a district in the city of Uzhhorod. The Hungarian equivalent of the name Radvan in the form of Radvanc has been known since 1427. The toponym Radvan is mentioned in the Rohatyn District of the Ivano-Frankivsk region until 1947, when the village was merged with Yavche.Overall, the anthroponym Radvan is an outdated form of the Slavic personal name with a complex root "radovan," which means "happy, joyful." Among similar names, one can find the Czech name Radvan and the Polish Radwan, which derive from the verb "to rejoice" (to be joyful). In Poland, the anthroponym Johanne Radwanek is first mentioned in 1387.