Robertha \r(o)-ber-tha, rob(e)-rtha\ as a girl's name is a variant of Roberta (Old English, Old German), and the meaning of Robertha is "bright fame".

The baby name Robertha sounds like Ruberta, Roberto, Robertina, Robertena, Roberda and Reberta. Other similar baby names are Aubertha and Ubertha.