69%RatingSave Gender Masculine Usage Bulgarian, Czech Scripts Радко(Bulgarian) Pronounced Pron. /ˈrat.ko/(Czech) [key·simplify] Meaning & History Originally a diminutive of names beginning with the Slavic element radŭ meaning "happy, willing". Related NamesFamily Tree·Details RootradŭVariantsRayko, Rayno(Bulgarian) Radek, Radim, Radúz(Czech) Feminine FormsRadina, Radka, Raina, Rayna(Bulgarian) Radka(Czech) Other Languages & CulturesRatko(Croatian) Radzim(Polish) Radu(Romanian) Radoš, Ratko(Serbian) Surname DescendantsRadkov, Radkova(Bulgarian) PopularityDetails Last ranked #190 in 1990 Czechia Name DaysName Days? Bulgaria: November 8 Categories feelings, happiness, joy