7,267births recorded
8Countries
3Variants
2002Peak · South Australia
#2676United States 2025
Reilly is a boy name family recorded 7,267 times in 8 countries since 1953. It ranks highest today in the United States (#2676 in 2025). Its all-time peak was in South Australia in 2002, at 46.1 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
All forms of Reilly
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Reilly | English | 4,560 | 🇺🇸 United States | #2676 | 2002 | ▼ 36 % |
| Reilly | English | 710 | 🏴 England & Wales | #3657 | 2012 | ▼ 73 % |
| Reilly | English | 312 | 🇨🇦 Ontario | – | 1998 | – |
| Reilly | English | 139 | 🏴 Scotland | – | 2012 | – |
| Reilly | English | 64 | 🇨🇦 British Columbia | – | 2001 | – |
| Reilly | English | 32 | 🇨🇦 Alberta | – | 2017 | – |
| Reyli | English | 873 | 🇺🇸 United States | #5608 | 2005 | ▼ 38 % |
| Reily | English | 536 | 🇺🇸 United States | – | 2006 | – |
| Reily | English | 24 | 🏴 England & Wales | – | 2008 | – |
How we grouped these names
- Reilly ↔ Reyli — spelling variant
- Reilly ↔ Reily — spelling variant
Questions about Reilly
How popular is the name Reilly?
In 2025 it ranked #2676 in the United States. Official registers record 7,267 births across 8 countries.
What is Reilly in other languages?
Reyli (English); Reily (English).
When was Reilly most popular?
It peaked in South Australia in 2002, at 46.1 births per 100,000.
Is Reilly a boy or a girl name?
In official birth registers, Reilly is a boy name.