Head to head · Girls' names
Selene vs Shelby
#621 vs #649 in 2025
Selene is ahead (#621 vs #649 in 2025), but the curves point different ways: Selene is climbing the charts fast, Shelby is stepping back from its peak.
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
The tape is even: Selene and Shelby each lead 3 measures of 6.
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
- 1910s: Selene #4814, Shelby #3661 — Shelby higher
- 1920s: Selene #4420, Shelby #3121 — Shelby higher
- 1930s: Selene #3875, Shelby #1073 — Shelby higher
- 1940s: Selene #3585, Shelby #358 — Shelby higher
- 1950s: Selene #3036, Shelby #518 — Shelby higher
- 1960s: Selene #2087, Shelby #537 — Shelby higher
- 1970s: Selene #1922, Shelby #378 — Shelby higher
- 1980s: Selene #2243, Shelby #328 — Shelby higher
- 1990s: Selene #1156, Shelby #47 — Shelby higher
- 2000s: Selene #1351, Shelby #114 — Shelby higher
- 2010s: Selene #1107, Shelby #310 — Shelby higher
- 2020s: Selene #703, Shelby #601 — Shelby higher
Shelby stood higher in every recorded decade — 12 of 12.
Rank by decade
| Decade | Selene | Shelby |
|---|---|---|
| 1910s | #4814 | #3661 |
| 1920s | #4420 | #3121 |
| 1930s | #3875 | #1073 |
| 1940s | #3585 | #358 |
| 1950s | #3036 | #518 |
| 1960s | #2087 | #537 |
| 1970s | #1922 | #378 |
| 1980s | #2243 | #328 |
| 1990s | #1156 | #47 |
| 2000s | #1351 | #114 |
| 2010s | #1107 | #310 |
| 2020s | #703 | #601 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Selene
Moon
Greek selēnē is simply the ordinary word for the moon; it is connected to selas, 'light, brightness'.
Σελήνη (Selēnē) → Selene → Selena → Selina
How it traveled
Selene comes straight from Greek σελήνη, the everyday word for the moon, which also served as the name of the Titan goddess of the moon — sister of Helios the sun and Eos the dawn in Hesiod's account of the older gods. Latin writers borrowed the name unchanged, and it traveled with classical learning into the modern languages of Europe, where the related forms Selena and Selina took hold alongside it.
Shelby
Willow settlement, or settlement on a ledge
Everyone agrees on the second half: -by is Old Norse for farm or village, left across northern England by Scandinavian settlers. The first element is argued. One reading takes it from Old Norse selja, willow, making it the willow farm — the reading usually given for the Yorkshire town of Selby, which Shelby is generally treated as a variant of. The other takes it from Old English scylf, a shelf or ledge of land, giving a settlement on a slope.
Selby (Yorkshire place name) → Selby (English surname) → Shelby (American surname) → Shelby (given name)
How it traveled
The name belongs to a large family of English place names that turned into surnames and then, in America, into first names. Shelby traveled as a family name first, carried west and planted on courthouses and county lines; Shelby County in Tennessee, which contains Memphis, is named for Isaac Shelby, as are towns in several other states.
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
Selene
suh-LEEN
Two pronunciations are both in real use: the anglicized two-syllable suh-LEEN, and the classical three-syllable seh-LEE-nee, closer to the Greek. Spanish speakers generally say seh-LEH-neh. Expect to state your preference more than once.
- Lena — The most portable short form, and a long-established given name in its own right across English, German and Scandinavian use.
- Sel — Informal, family-and-friends level; almost never written on anything official.
- Sele — Heard in Spanish-speaking families, where the vowels of the full name stay closer to the surface.
- Selly — Affectionate and mostly used with young children.
Shelby
SHEL-bee
Stress on the first syllable. There is one pronunciation and no real regional variation in English; it reads correctly on sight for almost anyone.
- Shel — The most common clipping, informal, used by family and close friends.
- Shelbs — Casual and affectionate, mostly peer-to-peer rather than adult-to-child.
- Bee — Drawn from the second syllable; occasional rather than standard.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Selene if you want…
- a name most people already know#621 in 2025, 469 babies that year
- a name on the way upup 182 places on the charts in five years
- a name that ages quietlyan estimated 51% chance of feeling dated by 2040, against 78% for Shelby
Choose Shelby if you want…
- a name fewer children share#649 in 2025 — shelby will almost certainly be the only one in school
- a name past its most crowded yearsShelby is stepping back from its peak
- a name that feels very nowShelby is stepping back from its peak
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
Selene
Strengths
- The meaning is settled and easy to explain in one word — moon — which is rarer than parents expect.
- Spelled the same in English, Spanish, Italian and Portuguese, so it crosses borders without adjustment.
- An unbroken presence in American records for more than a century, so it is familiar without being common.
To consider
- The two-syllable and three-syllable pronunciations both have real currency, so she will spend some of her life correcting people — or, more likely, answering to both.
- Selena, Selina and Céline are close enough that mail and roll calls will sometimes land on the wrong one. Céline is actually a separate name from a Latin root, but few people know that.
- It is climbing rather than fading, so it may be noticeably more familiar by the time she reaches school than it is now — still far from crowded, but less of a solo act than the record suggests.
Shelby
Strengths
- Spelling and sound match exactly — a Shelby rarely has to spell it twice, and almost never has to say it twice.
- On US records continuously for more than a century, so it is neither new nor dated to a single moment.
- Already familiar to Americans from the map: Shelby County, Shelbyville and a scatter of towns across several states.
To consider
- It began as a boys' name in American use and now runs overwhelmingly to girls in US records. That road is not closed for a son, but he would be the one explaining it.
- A great many Shelbys today are adults rather than children, so the name may register to some ears as a contemporary's name rather than a baby's. That gap tends to close as a child grows into it.
- The Shelby Mustang and Cobra keep the surname in wide circulation, and some people will hear the car before the person.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
How each is likely to age
Selene
51%chance Selene feels dated by 2040
Selene is climbing fast right now. Steep climbs tend to come with steep descents — the quicker a name arrives, the more firmly it belongs to its moment.
Shelby
78%chance Shelby feels dated by 2040
Shelby is coming down from a big peak (#33 in 1991). This is the stretch of the cycle where a name starts to sound like the decade it ruled.
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 Selene and Shelby 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 Selene and Shelby?
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 Selene and Shelby — the same style, ranked by the same records.
Selene or Shelby — the short answers
- Which is more popular, Selene or Shelby?
- Selene, in 2025: Selene ranked #621 with 469 babies; Shelby ranked #649 with 444 babies.
- Which name is rising faster, Selene or Shelby?
- Selene. Over the last five years Selene moved up 182 places; Shelby moved down 148 places.
- Which is the older name, Selene or Shelby?
- Selene entered the US charts in 1919; Shelby entered the US charts in 1913. On the American record, Shelby is the older name.
- How many people are named Selene and Shelby?
- About 9,500 people named Selene are estimated to be alive in the US today. About 140,000 people named Shelby are estimated to be alive in the US today.
- Will there be other Selenes or Shelbys in the classroom?
- Selene will almost certainly be the only one in school. Shelby will almost certainly be the only one in school.
US figures from the Social Security Administration, 1880–2025. 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 Selene, Shelby and the rest of your shortlist with your last name in one printable report.
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