Aleassa is not commonly used as a baby girl name. It is not in the top 1000 names. In 2015, among the family of girl names directly related to Aleassa, Alice was the most popular.
Baby names that sound like Aleassa include Aleashia, Alieshea (English), Eleacea, Eleacey, Eleaci, Eleacia, Eleacie, Elegea, Elegee, Eligia (Polish), Elisea, Elishia, Elishua, Elisia, Elizea, Eloisa (Italian, Spanish, Latin, and Scandinavian), Elouisa, Elvisa (Teutonic), Elysea, and Elyseah.
† approx English pronunciation for Aleassa: EY as in "ate (EY.T)" ; L as in "lay (L.EY)" ; IY as in "eat (IY.T)" ; AH as in "mud (M.AH.D)"