Head to head · Girls' names
Riley vs Ruby
#48 vs #64 in 2025
Riley is a whisker ahead (#48 vs #64 in 2025), but the curves point different ways: Riley is stepping back from its peak, Ruby is holding its place on the charts. On momentum, Ruby has the edge.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
The tale of the tape
On the charts, Ruby leads 3 measures of 6; Riley leads 2.
Ranks, counts and years are measured in the official US birth record; the classroom and living figures are estimates computed from it. The dot marks the side each measure favours on the charts — more common, not better.
What the records say
146 years of US births, drawn on one scale
Two curves, one scale
Who owned which decade
- 1880s: Riley —, Ruby #114 — Ruby higher
- 1890s: Riley —, Ruby #67 — Ruby higher
- 1900s: Riley —, Ruby #40 — Ruby higher
- 1910s: Riley —, Ruby #24 — Ruby higher
- 1920s: Riley #4510, Ruby #29 — Ruby higher
- 1930s: Riley #4175, Ruby #47 — Ruby higher
- 1940s: Riley #4624, Ruby #93 — Ruby higher
- 1950s: Riley #5091, Ruby #169 — Ruby higher
- 1960s: Riley #6417, Ruby #284 — Ruby higher
- 1970s: Riley #5803, Ruby #351 — Ruby higher
- 1980s: Riley #2304, Ruby #370 — Ruby higher
- 1990s: Riley #393, Ruby #273 — Ruby higher
- 2000s: Riley #68, Ruby #165 — Riley higher
- 2010s: Riley #37, Ruby #88 — Riley higher
- 2020s: Riley #40, Ruby #65 — Riley higher
Ruby stood higher in 12 of 15 decades; Riley has held the lead since the 2000s.
Rank by decade
| Decade | Riley | Ruby |
|---|---|---|
| 1880s | — | #114 |
| 1890s | — | #67 |
| 1900s | — | #40 |
| 1910s | — | #24 |
| 1920s | #4510 | #29 |
| 1930s | #4175 | #47 |
| 1940s | #4624 | #93 |
| 1950s | #5091 | #169 |
| 1960s | #6417 | #284 |
| 1970s | #5803 | #351 |
| 1980s | #2304 | #370 |
| 1990s | #393 | #273 |
| 2000s | #68 | #165 |
| 2010s | #37 | #88 |
| 2020s | #40 | #65 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Riley
- Canada#74
Ruby
- Scotland#30
- England & Wales#41
- Canada#89
National statistics offices, latest published year.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Riley
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.
Raghallach → Ó Raghallaigh → O'Reilly → Reilly → Riley
How it traveled
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.
Ruby
The red gemstone; ultimately from Latin ruber, "red"
The chain runs from Latin ruber through Medieval Latin rubinus, the red stone, into Old French and then English.
ruber (Latin, "red") → rubinus (Medieval Latin) → rubi / rubis (Old French) → ruby (English) → Ruby (given name)
How it traveled
The word arrived in English from Old French in the Middle Ages, and stayed a word for centuries before anyone thought to call a daughter by it. That change came in the nineteenth century, when English-speaking parents began naming girls after gemstones and flowers, and Ruby took to it better than most of its neighbors.
Where a reading is contested the note says so — this page does not turn a guess into a fact. The chain is each name's recorded forms, oldest first; the story is its opening, told in full on the name's own page.
Out loud, and in short
Riley
RYE-lee
Stress on the first syllable. Pronounced the same way for boys and girls, and identically across Reilly, Rylee and Ryleigh.
- Ry — The most common informal clip, used within families and among friends.
- Riles — Casual and affectionate, mostly used by peers rather than adults.
- Rye — Occasional playful shortening; leans on the English rye-clearing reading.
Ruby
ROO-bee
Two syllables, stress on the first. Pronounced the same as the gemstone, and the same in every English-speaking country — one of the few names that needs no explaining at a roll call.
- Rubes — The everyday informal short form among friends and siblings; almost never written down.
- Roo — A family nickname, usually from the early years, and shared with several other names.
- Ru — Clipped and informal; also stands alone as a short name in its own right.
- Ruby-Rose / Ruby-Mae — Hyphenated compounds are common in British and Irish usage, with Ruby used in full day to day.
Who has carried each name
Riley
Riley Keough (b. 1989) — Daisy Jones & the Six star, Elvis Presley's granddaughter
Ruby
Ruby Bridges (b. 1954) — At six, integrated her New Orleans school — immortalized by Norman Rockwell
Ruby Dee (b. 1922) — Stage and screen great of the civil rights era
Source: Wikidata — the one source on this page that is not an official agency.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Riley if you want…
- a name most people already know#48 in 2025, 4,441 babies that year
- a name past its most crowded yearsRiley is stepping back from its peak
- a newer arrivalRiley entered the US charts in 1923
- a name that feels very nowRiley is stepping back from its peak
Choose Ruby if you want…
- a name fewer children share#64 in 2025 — ruby will almost certainly be the only one in school
- a name on the way upup 10 places on the charts in five years
- a name that charts abroad tooRuby is on the national lists of Scotland, England & Wales and Canada
- a long American recordRuby was already in use when US records began in 1880
Each line is a measured difference between the two names — a rank, a count, a recorded form — never a judgement of either. Save the one that answers your question; it lands on your shortlist.
The trade-offs, name by name
Riley
Strengths
- 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.
To consider
- 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.
Ruby
Strengths
- Everyone can spell it and everyone can say it: it is an ordinary English word, so it survives phone calls, forms and teachers without a second attempt.
- A long unbroken record — in continuous use since the Victorian gemstone fashion, with living bearers across every adult generation.
- Charts on both sides of the Atlantic, in Scotland, England and Wales, and Canada, so it travels without becoming foreign.
To consider
- It is also a common word and a common pet name, so a child will meet the gem, the color and somebody's dog under the same label.
- Rubi, Rubie and Rubey all exist, so expect an occasional wrong letter even though the main spelling is the familiar one.
- It carries a strong period flavor for some listeners — it was a great-grandmother's name before it came back around, and both associations are live at once.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
How each is likely to age
Riley
81%chance Riley feels dated by 2040
Riley is coming down from a big peak (#22 in 2016). This is the stretch of the cycle where a name starts to sound like the decade it ruled.
Ruby
12%chance Ruby feels dated by 2040
Ruby has held the top-100 across 8 different decades — it has never depended on fashion, and names like that read the same at any age.
A reading of where each name sits on the long naming cycle — computed, not measured, and explained on the data page.
With your last name
Say both in full. The notes are facts about letters and sound — a rhyme, a shared initial, the monogram — not a verdict on either name.
Type a last name to hear Riley and Ruby in full.
Weighing the whole shortlist? Run the full comparison — up to eight names with your last name, initials, classroom projections and a printable report.
Decide together
Nobody names a baby alone
Still torn between Riley and Ruby?
Put both to the vote.
One link to your partner, your parents, your sister. Each of them gets the two names, a one-tap answer and room to say why — and every reply lands in one place.
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More than two in the running? Settle it with a bracket or run the full comparison with your last name.
More head-to-heads
Same measures, different pair. Sixty more are dealt daily in the arena.
Lists that carry both names
Every list here names both Riley and Ruby — the same style, ranked by the same records.
Riley or Ruby — the short answers
- Which is more popular, Riley or Ruby?
- Riley, in 2025: Riley ranked #48 with 4,441 babies; Ruby ranked #64 with 3,554 babies.
- Which name is rising faster, Riley or Ruby?
- Ruby. Over the last five years Riley moved down 15 places; Ruby moved up 10 places.
- Which is the older name, Riley or Ruby?
- Riley entered the US charts in 1923; Ruby was already in use when US records began in 1880. On the American record, Ruby is the older name.
- How many people are named Riley and Ruby?
- About 141,000 people named Riley are estimated to be alive in the US today. About 160,000 people named Ruby are estimated to be alive in the US today.
- Will there be other Rileys or Rubys in the classroom?
- Riley will almost certainly be the only one in school. Ruby will almost certainly be the only one in school.
US figures from the Social Security Administration, 1880–2025; international figures from national statistics agencies. Votes are battle voters on this site, not the birth record. Data & methodology
Keep playing
Sixty more head-to-heads are dealt in the arena every day — or line up Riley, Ruby and the rest of your shortlist with your last name in one printable report.
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