Delphinea \d(e)-lphi-nea, del-phinea\ as a girl's name is a variant of Delphine (Greek), and the meaning of Delphinea is "dolphin".
The baby name Delphinea sounds like Delphinia and Delphina. Other similar baby names are Delphia, Dellina, Deline, Delina, Delainey, Delaine, Delfina, Delphi, Delline, Delpha, Delfine, Dulcinea, Delsine, Delcine, Delcina, Ralphina and Ralphine.