Dylann
How to say it: DIL-un · /ˈdɪlən/
Modern respelling of Welsh Dylan meaning 'son of the sea' - unisex spelling popularized in late 20th century US.
Dylann was the 41st most popular boys’ name in the United States in 2025, given to 22 babies of either sex (Social Security Administration). Its busiest decade was the 2010s, its births are down about 45% in ten years, and it is projected to slip to #58 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #41 |
|---|---|
| Babies born in 2025 (both sexes) | 22 |
| Share of births | 1 in 487 |
| Peak decade | 2010s |
| Change over 10 years | −45% |
| Projected rank for 2030 (estimate) | #58 |
| In France, 2025 | #300 among boys’ names, 0 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Dylann is a newcomer: almost all of its history is from the last forty years.
What goes with it
Nicknames
- Dy
- Lan
Honouring a Dylann in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Dylann is about 1 in 21.
Around the world
This spelling is used in English, French, Welsh.
In France: #300 for boys in 2025.
Good to know
- Dylann (one letter off catalog Dylann) is dominated by Dylann Roof, perpetrator of the 2015 Charleston church murders; the near-homophone wi
Keep exploring
In the same lists
Find names you'll both love, starting with Dylann
The one-minute style quiz.