See also the related category french.
Vallis is not often used as a baby boy name. It is not in the top 1000 names.
Baby names that sound like Vallis include Valis, Velcho (Slavic), Velko, Vila (Czech), Vilas (Indian), Vilek (Czech), Vilko (Slavic and Czech), Vilous (Czech), Vlasi (Russian), Vlasis (Greek), Vlassis (Greek), Volga, Volya (Russian), Valaka (Indian), Valazquez, Velichko (Slavic), Veliko (Slavic), Vilasa (Indian), Vallea, and Velousek (Czech).
† English pronunciation for Vallis: V as in "vow (V.AW)" ; AE as in "at (AE.T)" ; L as in "lay (L.EY)" ; IH as in "it (IH.T)" ; S as in "see (S.IY)"