Wallas \wa(l)-las\ as a boy's name is a variant of Wallace (Old French), and the meaning of Wallas is "Welshman".

The baby name Wallas sounds like Wallis, Wells, Wills, Willis and Willes. Other similar baby names are Dallas, Callis, Callys, Dallis, Dalles, Tallis, Tallys, Wally, Wallie, Wallach, Waller and Waylan.