Sincere
Masculine · Latin roots · “sincere”
Sincere is given to both — 10,095 boys and 1,472 girls since 1880. See Sincere as a girl nameSee other names given to both
Sincere is the English word itself, lifted straight out of the dictionary and given to children — a name that arrives already understood by everyone who hears it. It rides on its second syllable, sin-SEER, which gives it a rising finish rather than a thud. It belongs to the American habit of naming from words of worth, and it has held a quiet, unbroken place in the records for decades.
How old is the name Sincere?
Sincere first appears in US birth records in 1976 — 49 years ago. The typical Sincere is a kid of about 10 — this name's wave is very recent. About 10,000 people named Sincere are estimated to be alive in the US today.
When was the name Sincere most popular?
Sincere peaked in 2022, reaching #542 nationally. Today it ranks #628, 86 places below that high. See the whole 2022 chart.
Sincere appears on these lists:
Where it comes from
From sincerus (Latin) to Sincere
The story of Sincere
The word entered English in the sixteenth century from Latin sincerus by way of French, first describing things that were pure or unmixed and only later describing people who meant what they said. As a given name it is much younger: Sincere is an American creation, part of a long national appetite for naming children after qualities rather than ancestors — a line that runs from the Puritan Patience and Verity to the modern Justice, King and Messiah. It has been recorded steadily for boys in the United States since the later twentieth century, with its strongest showing in New York, Georgia and Texas. Nothing about it is borrowed or disguised: the name and the word are the same thing.
Meaning
sincere, genuine, honest
The English word comes through French from Latin sincerus, 'pure, whole, unmixed.' The charming old explanation that it means 'without wax' — sine cera, of unadulterated honey or unpatched marble — is folk etymology, not linguistics; scholars trace the first part to a root meaning 'one, single' instead.
How the name formed
- sincerusLatin
- sincèreFrench
- sincereEnglish
- Sincere
Related forms: Sincerus · Sincero · Sincero
Pronouncing Sincere
sin-SEER
Two syllables, stress on the second — exactly as the everyday word is said. No one who reads English will need to be taught it.
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
- 1976
- Most boys named
- 2022545 — the highest on record
- Peak rank
- #542reached in 2022
- Change vs 2024
- −6.3%445 in 2025, from 475
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.
Sincere in other languages
The same name elsewhere
- Sincerus in Latin — related form
- Sincero in Spanish — related form
- Sincero in Italian — related form
Strongest US states over the last decade: New York, Georgia, Texas.
Sinceres among us
people named Sincere are estimated to be alive in the US today
About 1 boy in 3,838 born in 2025 was named Sincere
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Sincere
- #628
- Sincere on the 2025 chart
- #429
- counting every spelling
The SSA counts spellings, not names. Sincere went to 445 boys in 2025, but Syncere, Cyncere and Cincere are the same name said out loud. Together the 4 spellings went to 670, which makes it the 429th most-given boys’ name of the year — 199 places above the chart.
About 1 boy in 2,549 born in 2025 was given one of these spellings — against 1 in 3,838 for Sincere 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 Jedediah test
Every popular name lives one long story — a climb, a peak, a slow settling back. Sincere's later chapters haven't been written yet, so we borrowed them: Jedediah climbed just as high around 1979, and its whole arc is on record. Line the two peaks up, and Jedediah's path sketches the road Sincere is walking now.
Sincere 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
Where Sincere is headed
Sincere should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
High confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Sincere beside its neighbors
The names ranked closest to Sincere in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- The spelling is one every English reader already knows, so it survives forms, rosters and spelling bees without correction.
- The meaning needs no explanation and no translation — it is simply the word, in plain sight.
- Pronunciation is fixed by the dictionary, which removes the usual round of 'how do you say it?'
- It has been recorded continuously for boys in the US for decades, and shows up in real numbers in New York, Georgia and Texas.
- The first syllable, said alone or clipped by a classmate, is 'sin.' It is the most likely source of teasing, and worth saying out loud a few times before deciding.
- Virtue names carry an implied standard, and children notice. Some wear it lightly; others get told they aren't living up to it, usually by someone being funny.
- There is no established short form, so the full two syllables will do most of the work — fine for a name this short, but there is no ready fallback.
- He will almost certainly be the only one wherever he goes, which means a name that is his alone and also a name people occasionally ask him to repeat.
Nobody names a baby alone.
Put Sincere to the vote.
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What they receive
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Sincere
Masculine · Latin roots · #628 in the U.S.
Frequently asked
- How many Sinceres are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 10,000 people named Sincere are estimated to be alive in the US today.
- How do you spell Sincere?
- Sincere is the most-used spelling in US records — 445 of the 670 babies given the name in 2025. The others recorded are Syncere, Cyncere and Cincere.
- How popular is the name Sincere in 2025?
- Sincere ranks #628 among US boy names in 2025, with 445 babies given the name.
- How rare is the name Sincere?
- About 1 in every 3,838 US boys born in 2025 was named Sincere — 445 in all.
- Will my child share the name Sincere with classmates?
- Sincere will almost certainly be the only one in school.
Ranked beside Sincere
Names sitting at a similar level of popularity right now.
Kenzo#628 · Danny#628 · Jayceon#628 · Arturo#627 · Hassan#625 · Gustavo#625 · Zayd#632 · Nathanael#632
Looking for what else is popular rather than what resembles Sincere? See the current top 100.
Choosing between Sincere and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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