UK boy's name
Dillion
Obscure origin, possibly from the French 'de l'ion' meaning "from the lion".
For 2026, the newest official UK baby-name figures on this page are from 2015. That release is the current official benchmark rather than a forecast.
Dillion is a boy's name in the UK records. People looking for Dillion popularity in 2026 should use the latest official release, which is 2015 in this profile. In that release it ranked #4747, with 3 babies registered with the name. Its strongest year in the published records was 2006, with 4 births.
This profile covers 27 England and Wales registrations across 8 recorded years from 1997 to 2015. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 75% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 27 living people in the UK are called Dillion. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2016 or 2026.
Key insights
- • Dillion ranked #4747 for boys in England and Wales in 2015, with 3 registrations.
- • The name peaked in 2006, when 4 boys were registered as Dillion.
- • About 27 living people in the UK are estimated to have Dillion as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4747
2015
Births in 2015
3
Latest year
Peak year
2006
4 births
Estimated living
27
2026
Meaning
What does Dillion mean?
The name Dillion has its origins in the Gaelic language, stemming from the Irish surname Ó Duilleáin. This surname is derived from the word "duilleog," which translates to "leaf" or "folio." The name likely emerged in Ireland during the Middle Ages.
The earliest recorded use of the name Dillion dates back to the 16th century in Ireland. It was initially used as a surname, but over time, it transitioned into a given name as well. The name's connection to nature and the symbolism of leaves may have contributed to its appeal.
One of the earliest recorded individuals with the name Dillion was Sir Lucas Dillon (1578-1628), an Irish soldier and landowner who served in the Spanish Army of Flanders. He played a significant role in the Eighty Years' War between Spain and the Netherlands.
Another notable figure bearing the name Dillion was John Dillon (1851-1927), an Irish politician and nationalist leader. He served as a Member of Parliament for East Mayo and played a crucial role in the Irish Home Rule movement, advocating for greater autonomy for Ireland within the United Kingdom.
In the realm of literature, Dillion Wentworth Hicock (1879-1952) was an American author and journalist known for his works on natural history and outdoor adventure. His books, such as "The Grand Cañon of the Colorado River" and "The Explorer's Cañon," offered vivid descriptions of the American West.
Dillion Harper (born 1991) is a contemporary American actress and adult film performer. She has received numerous awards and accolades within the adult entertainment industry, including multiple AVN Awards and XBIZ Awards.
In the field of sports, Dillion Gabriel (born 1999) is an American football quarterback who currently plays for the Oklahoma Sooners. He previously played for the University of Central Florida and was named the American Athletic Conference Rookie of the Year in 2019.
Across various cultures and time periods, the name Dillion has maintained a connection to its Irish roots and the symbolism of nature. Its historical references and notable individuals bearing the name have contributed to its enduring popularity.
Sourced from namecensus.com.
Popularity
Dillion over time
The chart below shows babies named Dillion registered in England and Wales in the years where the name appears in the published records, from 1997 to 2015. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Dillion, the clearest high point is 2006. The latest England and Wales figure is 3 births in 2015, compared with 4 at the peak.
Babies born per year
Decades
Dillion by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Dillion was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2010s | #4747 | 3 | 1 |
| 2000s | #3657 | 18 | 5 |
| 1990s | #2901 | 6 | 2 |
Related
Names similar to Dillion
- Daniel 120,900
- Dylan 60,836
- David 37,852
- Dominic 20,480
- Declan 11,657
- Dexter 11,627
- Danny 8,434
- Dean 5,329
- Dillon 4,113
- Douglas 3,773
- Dominik 3,494
- Damian 3,486
FAQ
Dillion: questions and answers
How popular is the name Dillion in the UK right now?
In 2015, Dillion was ranked #4747 for boys in England and Wales, with 3 births registered.
When was Dillion most popular?
The peak year on record was 2006, with 4 babies registered as Dillion in England and Wales.
What is the meaning and origin of Dillion?
Obscure origin, possibly from the French 'de l'ion' meaning "from the lion".
How many people are called Dillion in the UK?
A total of 27 babies have been registered as Dillion across the 8 years of ONS England & Wales records shown here.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.