Riley
Masculine
Riley is given to both — 105,025 boys and 141,960 girls since 1880. See Riley as a girl nameSee other names given to both
Riley began as a surname on two shores at once — an Irish family name from the O'Reilly line, and an English one from a Lancashire place meaning a clearing where rye grew. It crossed into first-name use in America nearly a century ago and has never left the record since. Two syllables, both open and easy: RYE-lee, a name that ends on a rising note.
How old is the name Riley?
Riley was already in use when US birth records began in 1880 — it is at least 145 years old. The typical Riley alive today was born around 2004, making them about 21 years old. About 96,500 people named Riley are estimated to be alive in the US today.
When was the name Riley most popular?
Riley peaked in 2002, reaching #99 nationally. Today it ranks #207, 108 places below that high. See the whole 2002 chart.
Where it comes from
From Raghallach to Riley
The story of Riley
The Irish road runs through Ó Raghallaigh, the name of a family long associated with County Cavan, anglicized as O'Reilly and then Reilly, with Riley emerging as one of its common spellings among emigrants. The English road is quite separate: a place name from Lancashire, built from the Old English words for rye and for a woodland clearing, which became a surname for people who came from there. Both surnames landed in America in quantity in the nineteenth century, and by the early twentieth Riley had begun appearing on birth records as a first name. It was a boys' name first in that transition, as surname-names usually are, and only later became the mostly-girls' name it is in US records today.
Meaningscholars disagree
Either 'descendant of Raghallach' (Irish) or 'rye clearing' (English)
Two separate surnames arrived at the same spelling. The Irish Ó Raghallaigh means 'descendant of Raghallach', an old personal name whose own meaning has never been settled. The English Riley comes from places such as Ryley in Lancashire, from Old English ryge 'rye' and lēah 'wood, clearing'. Both readings are sound; which one sits behind a particular family usually depends on where that family came from.
How the name formed
- Raghallach
- Ó Raghallaigh
- O'Reilly
- Reilly
- Riley
Related forms: Ó Raghallaigh · Reilly · Rylee · Ryleigh
Pronouncing Riley
RYE-lee
Stress on the first syllable. Pronounced the same way for boys and girls, and identically across Reilly, Rylee and Ryleigh.
Nicknames for Riley
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1880
- Most boys named
- 20044,110 — the highest on record
- Peak rank
- #99reached in 2002
- Change vs 2022
- +4.1%1,666 in 2025, from 1,600
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Riley in other languages
The same name elsewhere
- Ó Raghallaigh in Irish — related form
- Reilly in English — spelling variant
- Rylee in English — spelling variant
- Ryleigh in English — spelling variant
Strongest US states over the last decade: California, Texas, Florida. International figures from Office for National Statistics, National Records of Scotland. Sources
Rileys among us
people named Riley are estimated to be alive in the US today
About 1 boy in 1,025 born in 2025 was named Riley
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
What happens to a name after it peaks
The Roland test
Every popular name lives one long story — a climb, a peak, a slow settling back. Riley's later chapters haven't been written yet, so we borrowed them: Roland climbed just as high around 1924, and its whole arc is on record. Line the two peaks up, and Roland's path sketches the road Riley is walking now.
Riley is on its second act. Revived names age gently: the generation that wore them first is far enough away that the name feels classic rather than dated.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Riley is headed
Riley should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
High confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Riley beside its neighbors
The names ranked closest to Riley in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Reads exactly as it is spelled for English speakers — no correction needed after the first hearing.
- Works for a boy or a girl without changing anything, since the source is a family name rather than a gendered one.
- Two clean syllables that sit easily beside most surnames, long or short.
- Familiar in Canada as well as the US, so it travels without explanation in English-speaking countries.
- Carries a genuine, traceable line back through Reilly and O'Reilly to medieval Ireland.
- The spelling competes with Rylee, Ryleigh and Reilly, all pronounced the same. Expect to spell it aloud fairly often, though the plain Riley form is the one most people default to.
- In the US this spelling goes mainly to girls, so a boy named Riley will meet the occasional wrong assumption on a class list or a form. It is a correction, not a problem.
- Its wave is recent and concentrated, so most Rileys alive today are close in age — the name reads as belonging to a particular generation rather than as an old family name.
- It is stepping back from its high point, which in practice means a child is unlikely to share it with a classmate while still meeting a name everyone already recognizes.
Nobody names a baby alone.
Put Riley to the vote.
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What they receive
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Riley
Masculine · #207 in the U.S.
Frequently asked
- How many Rileys are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 96,500 people named Riley are estimated to be alive in the US today.
- How popular is the name Riley in 2025?
- Riley ranks #207 among US boy names in 2025, with 1,666 babies given the name.
- How rare is the name Riley?
- About 1 in every 1,025 US boys born in 2025 was named Riley — 1,666 in all.
- Will my child share the name Riley with classmates?
- Riley will almost certainly be the only one in school.
Ranked beside Riley
Names sitting at a similar level of popularity right now.
Messiah#207 · Finn#206 · Abraham#209 · Camden#205 · Victor#209 · Maddox#209 · Kingston#204 · Timothy#203
Looking for what else is popular rather than what resembles Riley? See the current top 100.
Choosing between Riley and another name?
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US figures from the Social Security Administration; international figures from national statistics agencies. 1880–2025. Data & methodology
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