Declining since 1992.
Popularity of Dyllon since 1987
Babies named Dyllon per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1980s | 25 |
| 1990s | 612 |
| 2000s | 480 |
| 2010s | 136 |
| 2020s | 14 |
Meaning & origin
Dyllon represents a modern respelling of the well-known Welsh name Dylan, which has deep roots in Celtic mythology as a sea-god figure. The name first appeared in U.S. records in 1987, and its usage peaked in 1992 before entering a declining trajectory that has continued through the latest year on record, 2025. Although it has never ranked in the national top 1000, its peak year of 1992 saw a modest number of births that made it a recognizable alternative to the more common Dylan and Dillon spellings. Dyllon is overwhelmingly chosen for boys, aligning with the masculine tradition of Dylan, and its stylistic similarity to names like Logan and Kylie suggests an appeal among parents seeking a modern twist on a classic Welsh name. The lack of any recorded top states for this spelling indicates it never achieved strong regional concentration, instead appearing sporadically across the country as families embraced its distinctive 'y' and double 'l' spelling.
Dyllon is a modern respelling of the Welsh name Dylan, which appears in the Mabinogion as the son of Arianrhod, associated with the sea. The original Welsh elements 'dy' (great) and 'llanw' (flow, flood) suggest a meaning related to the sea. The '-on' variant spelling gained traction in the United States in the late 20th century, particularly in the 1990s.
Nicknames & variants
Nicknames: Dyl, Dyll
Sibling names for Dyllon
Names that share Dyllon's style, for a brother or sister.

