unisex name
Reilly
- Origin Irish
- Gender Unisex
- Syllables 2
- Letters 6
- Popularity Uncommon
- Births on record 12,118
Northern Ireland
#494
2017 births
Reilly is a unisex name with 2 syllables. It is given to both girls and boys — about 49% of recorded births with this name are girls. In 2025 it was given to 108 babies in the United States. It is used consistently but remains uncommon.
- Reilly is a name of Irish origin.
- Peaked in 1997, when 543 babies were given the name.
- It has been falling over the past decade.
- Today about 1 in 30,698 babies in the United States is given this name.
- First appears in US birth records in 1953.
- 2 syllables, with the stress on syllable 1.
Reilly over time
Births per decade in the United States, 1950s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1950s | 13 |
| 1970s | 24 |
| 1980s | 314 |
| 1990s | 2,628 |
| 2000s | 4,353 |
| 2010s | 2,055 |
| 2020s (to 2025) | 701 |
How popular is Reilly?
In 2025, Reilly was given to 108 babies in the United States. It is used consistently but remains uncommon.
Where Reilly is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Reilly
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Reilly also like
Names whose popularity has risen and fallen in step with Reilly over the last century — the same taste, a different name.
Sibling names for Reilly
Names from the same era that won't rhyme or share an initial with Reilly — the two things that make a sibling set grate.
Common questions about Reilly
How popular is the name Reilly?
In 2025, Reilly was given to 108 babies in the United States. It is used consistently but remains uncommon.
Is Reilly a girl's or a boy's name?
Reilly is used for both girls and boys. About 49% of recorded births with this name are girls.
How many syllables are in Reilly?
Reilly has 2 syllables.
When was Reilly most popular?
Reilly peaked in 1997, when 543 babies were given the name. It has been falling over the past decade.
Is Reilly a good name?
That is not something records can settle, but they can tell you what you would be choosing. Reilly currently ranks #613 in the United States. It has been falling over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.