UK boy's name
Rielly
An anglicized form of the Irish surname Ó Raghallaigh, meaning "descendant of Raghallach".
For 2026, the newest official UK baby-name figures on this page are from 2013. That release is the current official benchmark rather than a forecast.
Rielly is a boy's name in the UK records. People looking for Rielly popularity in 2026 should use the latest official release, which is 2013 in this profile. In that release it ranked #3822, with 4 babies registered with the name. Its strongest year in the published records was 2011, with 9 births.
This profile covers 29 England and Wales registrations across 5 recorded years from 2004 to 2013. 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 44% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 29 living people in the UK are called Rielly. 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 2014 or 2026.
Key insights
- • Rielly ranked #3822 for boys in England and Wales in 2013, with 4 registrations.
- • The name peaked in 2011, when 9 boys were registered as Rielly.
- • About 29 living people in the UK are estimated to have Rielly as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#3822
2013
Births in 2013
4
Latest year
Peak year
2011
9 births
Estimated living
29
2026
Meaning
What does Rielly mean?
The name Rielly is of Irish Gaelic origin, derived from the word "riaghail" which means "rule" or "regulation." It is believed to have first appeared in the late 12th century, during the Norman invasion of Ireland. The name was likely given to those who were associated with the implementation or enforcement of rules and laws.
In ancient Irish texts, the name Rielly is often associated with the ruling class or those in positions of authority. One of the earliest recorded examples of the name is Riaghail Mac Cathail, who was a prominent chieftain in the northern regions of Ireland during the 13th century.
Throughout history, the name Rielly has been borne by several notable figures. In the 15th century, Riaghail O'Donnell was a renowned Irish scholar and poet who wrote extensively about the culture and traditions of his homeland. Another notable bearer of the name was Riaghail O'Brien, a military leader who played a crucial role in the Irish Confederate Wars of the 17th century.
During the 19th century, the name Rielly gained popularity in both Ireland and the United States. Riaghail O'Reilly (1823-1892) was an Irish-American journalist and author who founded several influential newspapers, including the Memphis Appeal and the Memphis Avalanche. Riaghail Fitzpatrick (1848-1923) was an Irish-American priest and educator who played a significant role in the establishment of Catholic education in the United States.
In more recent times, the name Rielly has been associated with several prominent figures in various fields. Riaghail Ridout (1919-2012) was a Canadian actor and playwright who was celebrated for his contributions to the Canadian theater scene. Riaghail O'Donnell (1937-2015) was an Irish-American businessman and philanthropist who founded the successful company, Galen Associates.
While the name Rielly may have evolved over time and taken on different spellings, its Irish roots and connection to authority and leadership have remained a consistent theme throughout its history.
Sourced from namecensus.com.
Popularity
Rielly over time
The chart below shows babies named Rielly registered in England and Wales in the years where the name appears in the published records, from 2004 to 2013. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Rielly, the clearest high point is 2011. The latest England and Wales figure is 4 births in 2013, compared with 9 at the peak.
Babies born per year
Decades
Rielly by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Rielly 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 | #3018 | 19 | 3 |
| 2000s | #2892 | 10 | 2 |
Related
Names similar to Rielly
- Ryan 68,692
- Riley 37,992
- Robert 27,462
- Reuben 25,122
- Rhys 24,418
- Reece 24,329
- Rory 21,870
- Roman 16,609
- Ronnie 16,445
- Reggie 14,684
- Rowan 14,371
- Ralph 8,892
FAQ
Rielly: questions and answers
How popular is the name Rielly in the UK right now?
In 2013, Rielly was ranked #3822 for boys in England and Wales, with 4 births registered.
When was Rielly most popular?
The peak year on record was 2011, with 9 babies registered as Rielly in England and Wales.
What is the meaning and origin of Rielly?
An anglicized form of the Irish surname Ó Raghallaigh, meaning "descendant of Raghallach".
How many people are called Rielly in the UK?
A total of 29 babies have been registered as Rielly across the 5 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.