Head to head · Boys' names
Liam vs Luca
#1 vs #14 in 2025
Liam is a whisker ahead (#1 vs #14 in 2025), but the curves point different ways: Liam is holding its place on the charts, Luca is climbing the charts fast. On momentum, Luca 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, Liam leads 4 measures of 6; Luca 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
- 1910s: Liam —, Luca #3571 — Luca higher
- 1920s: Liam —, Luca #3489 — Luca higher
- 1940s: Liam #3733, Luca #3538 — Luca higher
- 1950s: Liam #2089, Luca — — Liam higher
- 1960s: Liam #1269, Luca #2862 — Liam higher
- 1970s: Liam #960, Luca #3187 — Liam higher
- 1980s: Liam #733, Luca #2350 — Liam higher
- 1990s: Liam #357, Luca #1524 — Liam higher
- 2000s: Liam #103, Luca #424 — Liam higher
- 2010s: Liam #6, Luca #177 — Liam higher
- 2020s: Liam #1, Luca #33 — Liam higher
Liam stood higher in 8 of 11 decades; Liam has held the lead since the 1950s.
Rank by decade
| Decade | Liam | Luca |
|---|---|---|
| 1910s | — | #3571 |
| 1920s | — | #3489 |
| 1940s | #3733 | #3538 |
| 1950s | #2089 | — |
| 1960s | #1269 | #2862 |
| 1970s | #960 | #3187 |
| 1980s | #733 | #2350 |
| 1990s | #357 | #1524 |
| 2000s | #103 | #424 |
| 2010s | #6 | #177 |
| 2020s | #1 | #33 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Liam
- Canada#2
- France#14
- Scotland#51
- England & Wales#70
Luca
- Scotland#2
- England & Wales#7
- Canada#21
National statistics offices, latest published year.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Liam
will, desire + helmet, protection
From the Germanic elements wil and helm, usually read together as something like 'resolute protection'. Liam carries that meaning at one remove, as the shortened form of Uilliam/William.
Willahelm → Wilhelm → William → Uilliam → Liam
How it traveled
The parent name was Germanic: Willahelm, formed from wil ('will, desire') and helm ('helmet, protection'). It traveled into Old French as Guillaume and crossed to England with the Normans in the eleventh century, where William became one of the most heavily used men's names for the next eight hundred years.
Luca
'From Lucania', a region of southern Italy
The standard scholarly derivation traces Greek Loukas to Lucania, the ancient district in Italy's south, making the name essentially 'the man from Lucania'. A second, much-repeated reading links it to Latin lux, 'light' — a connection most etymologists treat as a later association rather than the source. Both are worth knowing; neither has driven the other out.
Loukas → Lucas → Luca
How it traveled
The line begins with Greek Loukas, the name of the evangelist credited with the third gospel, which passed into Latin as Lucas and spread wherever the Christian calendar went. Italian trimmed the Latin ending to Luca, and it settled in as one of the country's steady, unremarkable-in-the-best-way boys' names — worn by Renaissance figures in Florence and by footballers and filmmakers since.
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
Liam
LEE-am
Two syllables, stress on the first. Irish speakers often land closer to LEE-um. It is said the same way in English, French and Dutch-speaking countries, which is part of why it travels so well.
- Liam — Already a short form itself, which is why most bearers use it in full in every setting, formal and informal alike.
- Li — An informal family clipping, used at home rather than on paper.
- William — Not a nickname but the long form; some parents register William and use Liam daily, giving the child both registers.
Luca
LOO-kah
Stress on the first syllable, the second a clear open 'ah'. Italian says it the same way. Hungarian is the outlier: there, Luca is a girl's name pronounced LOO-tsah.
- Luca — Most bearers use the full name in every setting; at two syllables it resists shortening.
- Luke — Used in English-speaking countries as a casual equivalent, and stands on its own as a given name.
- Luchino — An Italian diminutive of long standing, rare outside Italy.
Who has carried each name
Liam
Liam Neeson (b. 1952) — Schindler's List and Taken star
Liam Hemsworth (b. 1990) — The Hunger Games' Gale
Liam Payne (b. 1993) — One Direction singer
Luca
Luca Guadagnino (b. 1971) — Call Me by Your Name director
Luca Pacioli (b. 1440) — Renaissance friar known as the father of accounting
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 Liam if you want…
- a name most people already know#1 in 2025, 20,818 babies that year
- a name holding steadyLiam is holding its place on the charts
- a name that charts abroad tooLiam is on the national lists of Canada, France, Scotland and England & Wales
- a name that ages quietlyan estimated 40% chance of feeling dated by 2040, against 75% for Luca
Choose Luca if you want…
- a name fewer children share#14 in 2025 — roughly 1 in 8 classrooms will have a child named Luca
- a name on the way upup 53 places on the charts in five years
- a name that feels very nowLuca 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
Liam
Strengths
- Spelled the way it sounds, and familiar enough that most people will get it right the first time without a repeat.
- Sits behind William, a name with an unbroken record in English since the eleventh century, so a longer formal version is available if wanted.
- Two syllables and four letters — quick to say, quick to write, easy for a child to learn early.
To consider
- It is one of the most-used boys' names in the country right now. A Liam is likely to meet other Liams at school and may end up going by Liam plus a last initial.
- Because it is already a short form, there is little room to shorten it further — you get one name rather than a set of options.
- Its wave is very recent, so nearly every Liam alive in the US is young. That reads fresh now, but it will date the name to this generation later on.
Luca
Strengths
- Spelled the way it sounds for English speakers, with no silent letters and no obvious rival spelling to explain.
- Works in Italian, English, French, German and Romanian without adjustment, and has a close twin in Luka across the Slavic languages.
- Documented on Italian record since the fifteenth century, on painters, sculptors and mathematicians, so it long predates its current wave.
To consider
- Luca, Luka, Lucas and Luke all circulate at once right now, so expect a lifetime of gentle corrections about which one it is.
- The American wave is very recent, which means nearly everyone carrying it here is a child. It reads young, and will for another generation.
- In Hungary, Luca is a girl's name with its own feast-day traditions — worth knowing if your family has Hungarian connections.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
How each is likely to age
Liam
40%chance Liam feels dated by 2040
Liam 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.
Luca
75%chance Luca feels dated by 2040
Luca 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 Liam and Luca 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 Liam and Luca?
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
- Short and sweet: names of four letters or fewer
- Transatlantic hits: loved on both sides of the ocean
- America's top 100 names right now
- all guides
Every list here names both Liam and Luca — the same style, ranked by the same records.
Liam or Luca — the short answers
- Which is more popular, Liam or Luca?
- Liam, in 2025: Liam ranked #1 with 20,818 babies; Luca ranked #14 with 8,759 babies.
- Which name is rising faster, Liam or Luca?
- Luca. Over the last five years Liam is holding its place on the charts; Luca moved up 53 places.
- Which is the older name, Liam or Luca?
- Liam entered the US charts in 1947; Luca entered the US charts in 1915. On the American record, Luca is the older name.
- How many people are named Liam and Luca?
- About 355,000 people named Liam are estimated to be alive in the US today. About 77,000 people named Luca are estimated to be alive in the US today.
- Will there be other Liams or Lucas in the classroom?
- Roughly 1 in 3 classrooms will have a child named Liam. Roughly 1 in 8 classrooms will have a child named Luca.
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
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Sixty more head-to-heads are dealt in the arena every day — or line up Liam, Luca and the rest of your shortlist with your last name in one printable report.
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