Dilys \d(i)-lys, dil-ys\ as a girl's name is pronounced de-LEES. It is of Welsh origin, and the meaning of Dilys is "perfect; true, reliable". Dates from the mid-19th century.

Dilys has 4 variant forms: Dillys, Dylis, Dyllis and Dylyd.

For more information, see also the related name Nerys.

Baby names that sound like Dilys are Delyse and Delis.