Declining since 2016, #6,838 for girls today.
Popularity of Dylann since 1991
Babies named Dylann per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1990s | 83 | 25 |
| 2000s | 262 | 80 |
| 2010s | 431 | 224 |
| 2020s | 130 | 58 |
Meaning & origin
Dylann is a modern respelling of the Welsh classic Dylan, first recorded in U.S. data in 1991. Its peak came in 2016, when it ranked among the top 7,000 names, but it has been falling in popularity since that year. The name is given to roughly 1 in every 100,454 newborns as of 2025, placing it in rare-use territory. While the original Dylan has deep Welsh roots as a mythological and literary name, Dylann represents a contemporary American reinvention, likely influenced by the fashion for 'ynn' endings. It has been used as a unisex name, though recent data suggests a stronger female association. The name does not have a specific meaning beyond its derivation, and its usage remains uncommon, with no strong regional concentration.
Dylann is a modern spelling variant of Dylan, a name of Welsh origin meaning 'son of the sea.' The Dylan form has been used since the 20th century, but the respelling Dylann emerged in the 1990s in the United States, possibly influenced by similar names like Lynn or Ann. It has been used for both girls and boys, though predominantly for girls in recent decades.
“Dylann” around the world
Where Dylann lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
5
babies in 2024
Sources: INSEE (France).
Nicknames & variants
Nicknames: Dyl, Lanny, D
Sibling names for Dylann
Names that share Dylann's style, for a brother or sister.

