Definition of wallis:
(n) :
An English ethnic surname transferred from the nickname for someone with Welsh ancestry.
(n) :
A female given name.
(n) :
An unincorporated community in Forrest County, Mississippi, United States.
(n) :
A city in Austin County, Texas, United States, named after railroad director J. E. Wallis.
(n) :
A hamlet in Ambleston community, Pembrokeshire, Wales (OS grid ref SN0125).
(n) :
A canton of Switzerland (the German name)