Haroldo \ha-rol-do, har(o)-ldo\ as a boy's name is a variant of Harold (Scandinavian), and the meaning of Haroldo is "army ruler".

The baby name Haroldo sounds like Harolda, Herold, Heraldo, Haralds and Harald. Other similar baby names are Darold, Farold, Garold, Harlo and Aroldo.