[ syll. ro-ber-(t)ha, rob-er-tha ] The baby girl name Robertha is pronounced as RAAB-R-THAH †. Robertha's language of origin is Germanic. Robertha is a derivative of the English, German, and Italian Roberta.
Robertha is not commonly used as a baby girl name. It is not in the top 1000 names.
† approx English pronunciation for Robertha: R as in "race (R.EY.S)" ; AA as in "odd (AA.D)" ; B as in "be (B.IY)" ; TH as in "theme (TH.IY.M)" ; AH as in "mud (M.AH.D)"