Head to head · Girls' names
Katherine vs Kaylani
#186 vs #185 in 2025
Kaylani is a whisker ahead (#185 vs #186 in 2025), but the curves point different ways: Kaylani is climbing the charts fast, Katherine 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: Katherine and Kaylani 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
- 1880s: Katherine #54, Kaylani — — Katherine higher
- 1890s: Katherine #63, Kaylani — — Katherine higher
- 1900s: Katherine #62, Kaylani — — Katherine higher
- 1910s: Katherine #52, Kaylani — — Katherine higher
- 1920s: Katherine #63, Kaylani — — Katherine higher
- 1930s: Katherine #98, Kaylani — — Katherine higher
- 1940s: Katherine #78, Kaylani — — Katherine higher
- 1950s: Katherine #66, Kaylani — — Katherine higher
- 1960s: Katherine #80, Kaylani — — Katherine higher
- 1970s: Katherine #56, Kaylani — — Katherine higher
- 1980s: Katherine #32, Kaylani #8157 — Katherine higher
- 1990s: Katherine #30, Kaylani #7740 — Katherine higher
- 2000s: Katherine #39, Kaylani #2430 — Katherine higher
- 2010s: Katherine #87, Kaylani #998 — Katherine higher
- 2020s: Katherine #165, Kaylani #257 — Katherine higher
Katherine stood higher in every recorded decade — 15 of 15.
Rank by decade
| Decade | Katherine | Kaylani |
|---|---|---|
| 1880s | #54 | — |
| 1890s | #63 | — |
| 1900s | #62 | — |
| 1910s | #52 | — |
| 1920s | #63 | — |
| 1930s | #98 | — |
| 1940s | #78 | — |
| 1950s | #66 | — |
| 1960s | #80 | — |
| 1970s | #56 | — |
| 1980s | #32 | #8157 |
| 1990s | #30 | #7740 |
| 2000s | #39 | #2430 |
| 2010s | #87 | #998 |
| 2020s | #165 | #257 |
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
Katherine
Not established
The name's origin has never been established. The familiar association with a Greek word for pure is a later reinterpretation attached by writers who found the resemblance convincing, and the earliest recorded forms point somewhere else.
Aikaterine → Catherine → Katherine
How it traveled
The k and the c spellings split along national lines and always have. Germany, the Scandinavian countries and Poland write it with a k, because their alphabets use the letter freely and their languages took the name through Greek.
Kaylani
Usually read through Hawaiian lani, 'sky, heaven'
Two readings compete, and both are reasonable. One treats Kaylani as an English respelling of Hawaiian Kailani, from kai 'sea' and lani 'sky, heaven' — hence the popular gloss 'sea and sky'. The other treats it as an American coinage: the Kay- of Kayla and Kaylee joined to the familiar -lani ending, in which case only the second half carries a documented meaning. The lani element is solid either way; the first syllable is where the disagreement sits.
Kailani → Kaylani
How it traveled
Lani is a real and well-attested Hawaiian word for sky or heaven, and it closes a long list of Hawaiian names — Leilani, Kailani, Kalani, Noelani among them. Kaylani belongs to a wave of American names formed on that ending, and it is genuinely hard to say whether any given family reached it by respelling Kailani or by extending Kayla.
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
Katherine
KATH-ur-in
Three syllables with the stress at the front. The middle is reduced almost to nothing, which is why it is spelled with an e in some forms and an a in others.
- Kate — The dominant short form and a complete name in its own right.
- Kitty — An older affectionate form; warm and rather Victorian.
- Rina — Taken from the back; a standing name across several languages.
Kaylani
kay-LAH-nee
Three syllables, stress on the middle one. A minority say ky-LAH-nee, closer to the Hawaiian Kailani; expect to state your preference once and then be understood.
- Kay — The obvious short form, and a standalone given name in its own right for well over a century.
- Lani — Takes the back half instead of the front; also used on its own as a given name.
- Kayla — Informal, and already a full name elsewhere, which some families like and others avoid for exactly that reason.
- Kiki — A playful household form rather than anything anyone would write on a form.
Who has carried each name
Katherine
Katherine Johnson (b. 1918) — NASA mathematician celebrated in Hidden Figures
Katherine Heigl (b. 1978) — Grey's Anatomy's Izzie
Kaylani
No documented entry for Kaylani yet.
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 Katherine if you want…
- a name past its most crowded yearsKatherine is stepping back from its peak
- a long American recordKatherine was already in use when US records began in 1880
- a name that ages quietlyan estimated 12% chance of feeling dated by 2040, against 56% for Kaylani
Choose Kaylani if you want…
- a name on the way upup 155 places on the charts in five years
- a newer arrivalKaylani entered the US charts in 1987
- a name that feels very nowKaylani is climbing the charts fast
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
Katherine
Strengths
- It has more short forms than almost any other name, across several registers.
- It is recognized in every European language with small changes.
- It has been in continuous use for well over a thousand years.
To consider
- Two spellings are equally standard and the choice is queried for life.
- No meaning can be given honestly, whatever other pages assert.
- It is common enough that a child may not be the only one nearby.
Kaylani
Strengths
- Three ready-made short forms — Kay, Lani, Kayla — each of which already stands alone as a name, so it shortens without sounding improvised.
- Reads phonetically for English speakers: nothing silent, nothing surprising, no letter doing an unusual job.
- The -lani ending is already familiar through Leilani, Kailani and Kalani, so the shape lands as recognizable even where the name itself is new.
To consider
- It sits inside a crowded spelling cluster — Kailani, Kalani, Kaylanie, Kaelani — so it will be spelled aloud fairly often, and mail will arrive addressed to the wrong version.
- Lani is a Hawaiian word, and some Hawaiian speakers feel strongly about -lani names used outside the culture. Worth knowing if the connection matters to you, either as heritage or as borrowing.
- Because the name is genuinely recent, nearly everyone carrying it is a child. There is no adult Kaylani in most people's memory to anchor it, which cuts both ways — no baggage, but also no precedent.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
How each is likely to age
Katherine
12%chance Katherine feels dated by 2040
Katherine has held the top-100 across 14 different decades — it has never depended on fashion, and names like that read the same at any age.
Kaylani
56%chance Kaylani feels dated by 2040
Kaylani 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.
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 Katherine and Kaylani 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 Katherine and Kaylani?
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.
Free to start · no account needed · everyone you invite votes in one tap
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 these names appear on
- Long and elegant: names with room to breathe
- Names of the '80s and '90s, currently resting
- Millennial names (born 1981–1996)
- Generation Z names (born 1997–2012)
- all guides
Where Katherine and Kaylani each sit in the library — alternatives in the same style, ranked by the same records.
Katherine or Kaylani — the short answers
- Which is more popular, Katherine or Kaylani?
- Kaylani, in 2025: Kaylani ranked #185 with 1,675 babies; Katherine ranked #186 with 1,670 babies.
- Which name is rising faster, Katherine or Kaylani?
- Kaylani. Over the last five years Katherine moved down 50 places; Kaylani moved up 155 places.
- Which is the older name, Katherine or Kaylani?
- Katherine was already in use when US records began in 1880; Kaylani entered the US charts in 1987. On the American record, Katherine is the older name.
- How many people are named Katherine and Kaylani?
- About 487,000 people named Katherine are estimated to be alive in the US today. About 12,000 people named Kaylani are estimated to be alive in the US today.
- Will there be other Katherines or Kaylanis in the classroom?
- Katherine will almost certainly be the only one in school. Kaylani 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 Katherine, Kaylani and the rest of your shortlist with your last name in one printable report.
Free to start · no account needed · everyone you invite votes in one tap