Boy name origins & meanings Old German : Brave counselScandinavian : Helpful; confidentEnglish : IntelligentOld English : Red cliffEnglish : Helpful Boy name variations Conrad Konrad Conroy Cort Con Conrado Curt Kurt Radd Radbert Radcliff Radcliffe Radclyffe Radclyf Radford Radley Radnor Radferd Family name origins & meanings Muslim : variant of Raad.German : from a short form of a Germanic personal name formed with rād, rāt ‘advice’, ‘counsel’.Hungarian (Rád) : from the old secular personal name Rád, from Slavic Rad ‘joyful’ (see Rada).