76%RatingSave Gender Masculine Usage Romanian Pronounced Pron. /ˈra.du/ [key·simplify] Meaning & History Old Romanian diminutive of Slavic names beginning with the element radŭ meaning "happy, willing". Radu Negru was the semi-legendary founder of Wallachia in the 13th century. Related NamesFamily Tree·Details RootradŭOther Languages & CulturesRadko, Rayko, Rayno(Bulgarian) Ratko(Croatian) Radek, Radim, Radko, Radúz(Czech) Radzim(Polish) Radoš, Ratko(Serbian) Surname DescendantRadu(Romanian) PopularityDetails Last ranked #43 in 2009 Romania People think this name isRate·Details classic informal wholesome strong strange simple serious Categories 2020's Grand Slam tennis players, emotions, happiness, LGBT history, rulers, Trinity Blood characters