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.
† 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)"