Dillon
How to say it: DIL-un · /ˈdɪlən/
From the Irish surname Dillon, meaning 'like a lion' or from Welsh 'dillyn' meaning 'faithful'.
Dillon was the 41st most popular boys’ name in the United States in 2025, given to 253 babies (Social Security Administration). Its busiest decade was the 1990s, its births are down about 40% 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 | 253 |
| Share of births | 1 in 487 |
| Peak decade | 1990s |
| Change over 10 years | −40% |
| 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
Once at its height in the 1990s, Dillon has fallen off markedly. Now far below that peak, it is expected to keep slipping.
What goes with it
Mellow yet crisp around the edges, Dillon feels touched by nature with a literary air. Ronan sits close in spirit.
Nicknames
- Dill
Honouring a Dillon in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Dillon is about 1 in 21.
Around the world
This spelling is used in English, Irish, Welsh.
In France: #300 for boys in 2025.
Famous people named Dillon
- Dillon Brooks (born 1996)Canadian basketball player
- Dillon Francis (born 1987)American DJ and record producer
- Dillon Casey (born 1983)American actor
From Wikidata and Wikipedia
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