Reilly
Boy name · #2690 in 2025 · Very rare
How old is the name Reilly? In official American birth records, Reilly has been tracked continuously since 1953, giving it 72 years of documented American history.
In 2025, 48 baby boys were named Reilly, placing it at #2690 in the official national rankings. A decade ago it stood at #1790, so the name has been falling over the past ten years. Roughly one in every 37,500 boys born in 2025 was named Reilly.
The 72-year story
Reilly first appears in the Social Security records in 1953, when 6 boys received the name. Its peak came in 2007, when 218 boys were named Reilly — good for #909 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Reilly per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Reilly against up to 5 other names.
Uniqueness: will there be another Reilly in class?
On our rarity read — which blends how common Reilly is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Reilly will likely be the only one in the room, with the occasional spelling-out as the price.
Where Reilly is most common
State-level data for Reilly is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Reilly
Statistically, parents drawn to Reilly tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Ryley, Sully, Jovany, Jovanny, and Ely.
RyleySullyJovanyJovannyElyRonyNikhilRoshan
Rank history (last 25 years)
| Year | Babies named Reilly | Rank |
|---|---|---|
| 2025 | 48 | #2676 |
| 2024 | 46 | #2789 |
| 2023 | 56 | #2416 |
| 2022 | 55 | #2493 |
| 2021 | 60 | #2300 |
| 2020 | 51 | #2505 |
| 2019 | 72 | #2020 |
| 2018 | 71 | #2029 |
| 2017 | 64 | #2130 |
| 2016 | 95 | #1663 |
| 2015 | 84 | #1790 |
| 2014 | 104 | #1536 |
| 2013 | 114 | #1444 |
| 2012 | 149 | #1202 |
| 2011 | 143 | #1219 |
| 2010 | 163 | #1137 |
| 2009 | 172 | #1078 |
| 2008 | 210 | #954 |
| 2007 | 218 | #909 |
| 2006 | 174 | #1043 |
| 2005 | 178 | #976 |
| 2004 | 168 | #988 |
| 2003 | 196 | #873 |
| 2002 | 204 | #823 |
| 2001 | 202 | #817 |
Frequently asked questions
How old is the name Reilly?
In official American birth records, the name Reilly first appeared in 1953 (over 72 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 72 years.
Is Reilly a popular boy name?
Reilly ranked #2690 among boys in 2025 with 48 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1790.
When was the name Reilly most popular?
Reilly peaked in 2007, when 218 American boys received the name (ranked #909 that year). Since 2007 the name has declined from that high.
How rare is the name Reilly?
In 2025, roughly 1 in 37,500 newborn American boys was named Reilly. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.