Carlus
Masculine · Germanic roots · “free man (through Charles)”
Carlus is overwhelmingly a boys’ name — 525 boys against 10 girls since 1880.
Carlus has the look of a Latin name, with the -us ending of Marcus and Julius, and it belongs to the family of Charles. It is not the Latin form, though: Latin wrote Charles as Carolus, with three syllables, and Carlus is a shorter spelling that sounds much like Carlos.
How old is the name Carlus?
Carlus first appears in US birth records in 1913 — 112 years ago. The typical Carlus alive today was born around 1967, making them about 58 years old. About 400 people named Carlus are estimated to be alive in the US today.
When was the name Carlus most popular?
Carlus peaked in 1970, reaching #1989 nationally. See the whole 1970 chart.
Lists built from the same records:
Where it comes from
From karl (Germanic) to Carlus
The story of Carlus
Charles entered written Latin as Carolus, the form behind the adjective Carolingian and the Latin name of every King Charles. Carlus is not that form but a two-syllable spelling that sits between Carl and Carlos, found on American records mostly for boys and, much more rarely, for girls. For the girls the record gives no separate source; the same letters simply appear on both registers.
Meaning
free man (through Charles)
Carlus belongs to Charles, from the Germanic karl, a free man, whichever route it took.
How the name formed
- karlGermanic
- CarolusLatin
- Carlos, Carl
- Carlus
Related forms: Carolus · Carlos · Charles · Carl
Pronouncing Carlus
KAR-lus
Two syllables, stressed on the first, rhyming with Marcus.
Nicknames for Carlus
Limited
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
- 1913
- Most boys named
- 197020 — the highest on record
- Peak rank
- #1989reached in 1970
- Change vs 2002
- +40.0%7 in 2004, from 5
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.
Carlus in other languages
The same name elsewhere
- Carolus in Latin — related form
- Carlos in Spanish — related form
- Charles in English — related form
- Carl in Swedish — related form
Carluss among us
people named Carlus are estimated to be alive in the US today
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
Questions parents actually ask
Fashion outlook
Carlus sits outside the current charts, and that is its own kind of answer: naming cycles can only date the names they carried up. A name this rare has no decade stamped on it — it cannot go out of fashion, because it was never in.
Based on 146 years of naming cycles. How we read them
The trade-off
- A clear place in the Charles family, with a meaning that is not in doubt.
- Two syllables, easy to say and to spell once heard.
- Carl is available as a short form.
- Nearly every Carlus on record is a boy; a girl given this spelling will be read as a boy on paper, and the -us ending strengthens that impression.
- Expect it to be corrected to Carlos, or to Carolus by anyone who knows Latin; a quick spelling at each new form settles it.
Nobody names a baby alone.
Put Carlus to the vote.
Add it to a family vote or a couple’s swipe deck — the other person gets one card, a simple answer and room to say why. No app, no account for them.
Only the people you invite can see your list.
Already decided on Carlus? Hide it among decoys and let them guess.
What they receive
Someone added a name to your list
Carlus
Masculine · Germanic roots
Frequently asked
- How many Carluss are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 400 people named Carlus are estimated to be alive in the US today.
- How popular is the name Carlus in 2025?
- Carlus is rarely given in the US today — it does not rank in the top 2000 boy names.
- Will my child share the name Carlus with classmates?
- Carlus will almost certainly be the only one in school.
More C names
The most-given names starting with C, all years combined.
Charles#48 · Christopher#68 · Carl#1132 · Christian#96 · Caleb#58 · Cameron#76 · Carlos#150 · Clarence#1499
Looking for what else is popular rather than what resembles Carlus? See the current top 100.
Choosing between Carlus and another name?
See them side by side — full stats, history and a gentle verdict.
Compare side by sideIn a hurry? Just pick a winner — one tap, no sign-up, and you see how everyone else voted.
Weighing a whole shortlist? Add the rest in the builder, or settle it with a bracket.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
US figures from the Social Security Administration. 1880–2025. Data & methodology
No advertising trackers and no data sellinghow we handle your dataindependent and founder-run, about Name Battle