Alfonsia \a-lfon-sia, al-fo-nsia\ as a girl's name is a variant of Alfonsine (Old German), and the meaning of Alfonsia is "ready for battle".

The baby name Alfonsia sounds like Alvinia, Alvina, Alphonsine, Elvinia, Elvenia, Alvineea, Alvena and Alveenia. Other similar baby names are Aloisia, Aloysia, Alonia, Allonia and Alonsa.