Dylis \d(y)-lis\ as a girl's name is a variant of Dilys (Welsh), and the meaning of Dylis is "perfect; true, reliable".
The baby name Dylis sounds like Delis and Dyllis. Other similar baby names are Ailis, Allis, Alis, Delia, Delie, Dalia, Dalit, Dallis, Delisa, Dellis, Deliz, Delise, Dalise, Dylyd, Doris, Dylan, Elis, Eilis, Felis, Filis, Phylis and Fyllis.