Ranulfo \r(a)-nul-fo, ran(u)-lfo\ as a boy's name is a variant of Randolph (Old German), and the meaning of Ranulfo is "wolf shield".

The baby name Ranulfo sounds like Ranolf. Other similar baby names are Ralf, Randolf, Ranell, Rinaldo, Raonull, Renaldo, Raynaldo, Rodolfo, Ronello, Ronaldo, Ranald and Rudolfo.