Wister \wi(s)-ter\ as a boy's name (also used as girl's name Wister), is a variant of Wistar (German). See for meaning of Wister.
The baby name Wister sounds like Foster and Vester. Other similar baby names are Winter, Buster, Caster, Kester, Coster, Lester, Nester, Walter, Webster, Westen, Whistler and Wilder.