US Popularity Rank: 6011

Origin: Welsh

Meaning: Perfect, true, or reliable

Dilys is a girl’s name of Welsh origin, meaning “perfect, true, or reliable.” If you want your little one to be trustworthy and true of heart, this pretty name is sure to inspire them! Dating back to the mid-19th century, Dilys was once a popular name in Wales, but now has more of a vintage feel to it. If you’re looking for a charming, old-style name that pays tribute to your Welsh heritage, Dilys is a lovely choice.