See also the related category indoeuropean.
Diahanne is not often used as a baby girl name. It is not in the top 1000 names.
Baby names that sound like Diahanne include Dagnija (Latvian), Dakinee, Dakiney, Dakini, Dakinie, Dakiny, Dakynee, Dakyney, Dakyni, Dakynie, Dakyny, Danai, Dasean, Dejanae, Dejanee, Desmea, Diahann (English), Diamyn, Diany, and Dionee.
† approx English pronunciation for Diahanne: D as in "day (D.EY)" ; AY as in "side (S.AY.D)" ; AH as in "mud (M.AH.D)" ; HH as in "he (HH.IY)" ; AE as in "at (AE.T)" ; N as in "knee (N.IY)"