See also the related category celtic.
Fen is not often used as a baby girl name. It is not in the top 1000 names.
Baby names that sound like Fen include Faan, Faene, Fahn, Faim, Faime, Faine, Fame, Fan (English), Faun (English), Faune, Fawn (English), Fawne, Fayeanne, Faym, Fayme, Fayne, Femae, Fenne (Frisian and German), Fifne, and Fin.
† English pronunciation for Fen: F as in "fee (F.IY)" ; AH as in "mud (M.AH.D)" ; N as in "knee (N.IY)"