Pfeostun is not regularly used as a baby name for boys. It is not listed in the top 1000 names. In 2015, among the group of boy names directly linked to Pfeostun, Preston was the most popular.
A baby name that sounds like Pfeostun is Fatien.
† approx English pronunciation for Pfeostun: F as in "fee (F.IY)" ; IY as in "eat (IY.T)" ; OW as in "oak (OW.K)" ; S as in "see (S.IY)" ; T as in "tee (T.IY)" ; AH as in "mud (M.AH.D)" ; N as in "knee (N.IY)"