Origin:Welsh
Popularity:5039
Meaning:like a lion; loyal; son of the sea
Dillan is a boy or girl's name meaning "like a lion", "loyal", or "son of the sea". It derives from the Irish or Gaelic name Dillon and the Welsh name Dylan.

Popularity Trend Chart

Roll over the visual for detailed rankings by year.

Source: Social Security Administration

Not sure you have the perfect name? Search to add more baby names to your My Favorites list.
Name added. View your list