Sincere
Feminine · “genuine”
Sincere is given to both — 1,472 girls and 10,095 boys since 1880. See Sincere as a boy nameSee other names given to both
Sincere is the English adjective, and the story usually told about its origin is charming and false: it does not come from a phrase about wax. The real history is less tidy.
How old is the name Sincere?
Sincere first appears in US birth records in 1982 — 43 years ago. The typical Sincere alive today was born around 2011, making them about 14 years old. About 1,500 people named Sincere are estimated to be alive in the US today.
When was the name Sincere most popular?
Sincere peaked in 2010, reaching #2152 nationally. Today it ranks #3459, 1,307 places below that high. See the whole 2010 chart.
Lists built from the same records:
Where it comes from
From sincerus to Sincere
The story of Sincere
Sincerus meant pure or unmixed in Latin — of wine, of metal, of intentions — and English took it in the sixteenth century for people rather than substances. The wax story has circulated for four hundred years and is not true. As a given name Sincere appears in American records from the 1990s onward, used for girls and boys alike, in the company of Justice, Legend and Promise.
Meaning
genuine, without pretence
From Latin sincerus, clean or unadulterated. The popular account deriving it from sine cera, without wax, as though describing unrepaired marble, is a folk etymology with no support; the second half of the Latin word has never been securely explained.
How the name formed
- sincerus
- sincere
Related forms: Sincero · Sincère
Pronouncing Sincere
sin-SEER
Two syllables with the stress on the second. There is no variation in English.
Nicknames for Sincere
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
- 1982
- Most girls named
- 200991 — the highest on record
- Peak rank
- #2152reached in 2010
- Change vs 2024
- +22.2%44 in 2025, from 36
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
- Sincero in Spanish — related form
- Sincère in French — related form
Strongest US states over the last decade: Florida, Texas, California.
Sinceres among us
people named Sincere are estimated to be alive in the US today
About 1 girl in 36,529 born in 2025 was named Sincere
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Sincere
- #3459
- Sincere on the 2025 chart
- #882
- counting every spelling
The SSA counts spellings, not names. Sincere went to 44 girls in 2025, but Syncere, Cyncere and Cynncere are the same name said out loud. Together the 4 spellings went to 78, which makes it the 882nd most-given girls’ name of the year — 2,577 places above the chart.
- Sincere44
- Syncere22
- Cyncere7
- Cynncere5
About 1 girl in 20,606 born in 2025 was given one of these spellings — against 1 in 36,529 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 Mccall 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: Mccall climbed just as high around 1993, and its whole arc is on record. Line the two peaks up, and Mccall'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.
Medium 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 girls given each name in 2025.
The trade-off
- An ordinary English word, so nobody has to be taught to say or spell it.
- The real Latin history, and the false one, are both worth telling.
- It works for a girl or a boy, which is useful before a birth.
- The Sin clip is unavoidable and unkind, and children will find it.
- A quality name sets an expectation the child did not choose.
- It is used for both sexes, so forms will sometimes guess wrong.
Nobody names a baby alone.
Put Sincere to the vote.
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What they receive
Someone added a name to your list
Sincere
Feminine · #3459 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 1,500 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 — 44 of the 78 babies given the name in 2025. The others recorded are Syncere, Cyncere and Cynncere.
- How popular is the name Sincere in 2025?
- Sincere ranks #3459 among US girl names in 2025, with 44 babies given the name.
- How rare is the name Sincere?
- About 1 in every 36,529 US girls born in 2025 was named Sincere — 44 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.
Janey#3459 · Devon#3459 · Nitya#3459 · Zayah#3459 · Lively#3459 · Kynsley#3459 · Anaiya#3459 · Ena#3459
Looking for what else is popular rather than what resembles Sincere? See the current top 100.
Choosing between Sincere and another name?
See them side by side — full stats, history and a gentle verdict.
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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
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