Kelby
Feminine
Kelby is given to both — 1,563 girls and 4,019 boys since 1880. See Kelby as a boy nameSee other names given to both
Every English place name ending in -by marks a Viking settlement. Old Norse býr means a farm or village, and the -by names — Whitby, Grimsby, Derby, Selby — cluster so tightly in the north and east that they draw the boundary of the Danelaw on a map.
How old is the name Kelby?
Kelby first appears in US birth records in 1974 — 51 years ago. The typical Kelby alive today was born around 2000, making them about 25 years old. About 1,500 people named Kelby are estimated to be alive in the US today.
When was the name Kelby most popular?
Kelby peaked in 1991, reaching #1656 nationally. Today it ranks #7491, 5,835 places below that high. See the whole 1991 chart.
Lists built from the same records:
Where it comes from
From býr to Kelby
The story of Kelby
The Scandinavian settlement of England in the ninth and tenth centuries left its clearest trace in place names, and the distribution is startlingly precise. Names in -by, -thorpe, -thwaite and -toft are dense in Yorkshire, Lincolnshire, Nottinghamshire and Cumbria and almost absent in Wessex, which is exactly the territory ceded to Danish rule by the treaty between Alfred and Guthrum. Lincolnshire alone has over two hundred -by names. The word survives in English as the by of bylaw, originally a town law. Kelby entered American given-name use in the 1980s surname-name wave, and the female figures peak in 1991.
Meaningscholars disagree
Old Norse "farm by the spring" or "Kel's farm"
From Old Norse býr, a farm or settlement, with a first element variously read as kelda, a spring or well, or a personal name Kel. The English place names Kelby and Keelby are both attested in Lincolnshire. As a modern given name it is an American surname adoption, used for both sexes, with no separate meaning.
How the name formed
- býr
- Kelby
Related forms: Kelbie · Kelda-býr
Pronouncing Kelby
KEL-bee
Two syllables, stress on the first. The -by ending is said bee, as in Derby's American pronunciation, not as the English by.
Nicknames for Kelby
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
- 1974
- Most girls named
- 199190 — the highest on record
- Peak rank
- #1656reached in 1991
- Change vs 2024
- −17.6%14 in 2025, from 17
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.
Kelby in other languages
The same name elsewhere
- Kelbie in English — spelling variant
- Kelda-býr in Old Norse — related form
Kelbys among us
people named Kelby are estimated to be alive in the US today
About 1 girl in 114,805 born in 2025 was named Kelby
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Kelby
- #7491
- Kelby on the 2025 chart
- #941
- counting every spelling
The SSA counts spellings, not names. Kelby went to 14 girls in 2025, but Kelbi is the same name said out loud. Together the 2 spellings went to 19, which makes it the 941st most-given girls’ name of the year — 6,550 places above the chart.
- Kelby14
- Kelbi5
About 1 girl in 84,593 born in 2025 was given one of these spellings — against 1 in 114,805 for Kelby itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Izella test
Every popular name lives one long story — a climb, a peak, a slow settling back. Kelby's later chapters haven't been written yet, so we borrowed them: Izella climbed just as high around 1911, and its whole arc is on record. Line the two peaks up, and Izella's path sketches the road Kelby is walking now.
Kelby sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Kelby beside its neighbors
The names ranked closest to Kelby in 2025, in babies rather than position — the bars are to scale.
US girls given each name in 2025.
The trade-off
- It is a genuine English place-name surname with a documented Norse element.
- It is short, two syllables and read correctly on sight.
- Kel works as a short form for either sex.
- It reads as unisex, so it does not signal sex on its own.
- The first element of the place name is genuinely uncertain.
- It is rare enough to need spelling out.
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What they receive
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Kelby
Feminine · #7491 in the U.S.
Frequently asked
- How many Kelbys are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 1,500 people named Kelby are estimated to be alive in the US today.
- How do you spell Kelby?
- Kelby is the most-used spelling in US records — 14 of the 19 babies given the name in 2025. The others recorded are Kelbi.
- How popular is the name Kelby in 2025?
- Kelby ranks #7491 among US girl names in 2025, with 14 babies given the name.
- How rare is the name Kelby?
- About 1 in every 114,805 US girls born in 2025 was named Kelby — 14 in all.
- Will my child share the name Kelby with classmates?
- Kelby will almost certainly be the only one in school.
Ranked beside Kelby
Names sitting at a similar level of popularity right now.
Christie#7491 · Carmelita#7491 · Jetta#7491 · Hildegard#7491 · Rickie#7491 · Billy#7491 · Angelyn#7491 · Jewell#7491
Looking for what else is popular rather than what resembles Kelby? See the current top 100.
Choosing between Kelby and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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