Son of the sea or born from the ocean
Dyllan is a modern spelling variant of the Welsh name Dylan. In Welsh mythology, Dylan Ail Don was a sea deity whose name translates to 'son of the wave'. This spelling adds a contemporary twist to a traditional Celtic name.
About 11 boys were named Dyllan in 2025.
US births per 5-year period, 1990–present (SSA data).
American actor known for the film Unaccompanied Minors
The same feel as Dyllan — far less common.
Hidden gems that stand out.