Elthia is a variation of Althea (English).
Elthia is also a variation of Elethea.
Elthia is seldom used as a baby name for girls. It is not listed within the top 1000 names.
Baby names that sound like Elthia include Elthea, Elata, Elida (English), Elidi, Elletta, Ellota (English), Elodi, Elodie (English and French), Eltheya, Aleyda, Alieta, Aliute (Lithuanian), Elethea, Eletheah, Eletheya, Eletheyah, Elethia, Elethiah, Elethiya, and Elethiyah.
† approx English pronunciation for Elthia: EH as in "ebb (EH.B)" ; L as in "lay (L.EY)" ; TH as in "theme (TH.IY.M)" ; IY as in "eat (IY.T)" ; AH as in "mud (M.AH.D)"