Reilly
UnisexReilly has been given to 10,088 babies in the U.S. since 1953. It peaked in 1997.
Meaning & origin /ˈɹaɪli/
From Irish Ó Raghallaigh, a surname meaning "descendants of Raghallach".
Origin: surnames
Etymology adapted from Wiktionary, licensed CC BY-SA 4.0.
Popularity over time births per year, 1880–2025
Total babies
10,088
Peak year
1997 (543 babies)
Rank in 2025
Below top 1000
First recorded
1953
10-year trend
▼ -38%
Gender split
55% girls / 45% boys
Rank through the decades
Reilly's rank among U.S. girl names at 25-year milestones.
| Year | Girls rank | Boys rank |
|---|---|---|
| 2000 | #795 | #827 |
— means outside the top 1000 that year.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Reilly.
FAQ
How popular is the name Reilly?
Reilly has been given to 10,088 babies in the U.S. since 1953. It ranked below the top 1000 in 2025.
When did the name Reilly peak?
Reilly peaked in 1997, when 543 babies were given the name.
Is Reilly a girl or boy name?
Reilly is a unisex name, used for both girls and boys.
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