Allis \a(l)-lis\ as a girl's name is a variant of Alice (Old German), and the meaning of Allis is "noble, exalted".
The baby name Allis sounds like Ailis, Allys, Alliss, Alles, Alis, Alais and Allisa. Other similar baby names are Allie, Alli, Aldis, Allix and Allia.