See also the related category greek.
Lethe is not often used as a baby girl name. It is not listed within the top 1000.
Baby names that sound like Lethe include Ladi (Hausa), Lady (English), Laidey, Laidy, Laleete, Lata (Indian), Latai, Ledah (English), Leitha, Leotee, Leoti, Leoty, Leta (English), Leto (English), Letti (English), Lettie (Dutch, English, and German), Letty (English), Leuedai, Lida (English, Czech, Dutch, Greek, Polish, and Russian), and Liddie.
† English pronunciation for Lethe: L as in "lay (L.EY)" ; IY as in "eat (IY.T)" ; DH as in "they (DH.EY)"