Sincere

#631 in 2025UnisexBoys' nameGirls' name

Literal meaning not recorded

Sincere has been given to 11,567 babies in the U.S. since 1976. In 2025 it ranked #631 of 13,926 boys’ names in use. Its peak year was 2022, with 545 recorded. It's used for both sexes: 87% boys, 13% girls all-time.

Babies named Sincere, 2025

1 in 7,450

Sincere over time, 1880–2025

BoysGirls
020040060018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Sincere over time

In 2025, Sincere went to 9% girls and 91% boys.

19762025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Sincere: meaning, origin, and history

Literal meaning not recorded

Deeper origin not confirmed in the cited records

What Sincere means

Sincere is a given name.

Origin, language, and formation

Sincere is used in English.

American usage and historical context

In the United States, 10,095 boys were recorded with the name Sincere between 1976 and 2025. Its highest annual count was 545 in 2022; its best national rank was #544 in 2022.

Over 5 years its rank fell, from #602 in 2020 to #631 in 2025. Over 10 years its rank fell, from #628 in 2015 to #631 in 2025.

In the United States, 1,472 girls were recorded with the name Sincere between 1982 and 2025. Its highest annual count was 91 in 2009; its best national rank was #2,164 in 2010.

Over 5 years its rank fell, from #3,010 in 2020 to #3,509 in 2025. Over 10 years its rank fell, from #3,054 in 2015 to #3,509 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Sincere?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 7,450
445 of 3,315,165 births
Among boys only
1 in 3,840
0.03% of boys
Rank, 2025
#631
of 13,926 boys’ names in use
Coin-flip room size
5,165 kids
Even odds of a second one

Where Sincere sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 1001%
School of 5006%

Put another way: gather 5,165 children born in 2025 and it's an even bet that one of them is another Sincere. In a class of 30 the chance is Under 1%.

When Sinceres were born

Half of everyone ever recorded as Sincere was born before 2015 — so the typical Sincere is around 10 today.

Median birth year
2015
About 10 years old
Biggest decade
2010s
41.0% of all use
Born in the last 25 years
96.2%
A modern name
Recorded since 1950
10,095
People you could plausibly meet
Choose a decade

2010s — 41.0% of all recorded uses (4,142).

Is Sincere rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−28
Places dropped
Rank vs 5 years ago
−29
Places dropped
Rank vs 10 years ago
−3
Places dropped
Births vs 10 years ago
1.04×
More babies than then
Share of its own peak
81.7%
Peak was 2022 (545)
Years since peak
3
Years
Year-to-year steadiness
Steady
8.0% average annual change
Best rank ever
#544
2022

Spellings of Sincere

Sincere is the most-used spelling, taking 69.5% of the 14,518 babies given a near-identical spelling.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Sincere is used — boys

Across 2016–2025, Sincere was most concentrated in District of Columbia — about 1 in 446 boys, against 1 in 3,234 across all states with data. It was least common in Washington (1 in 20,000).

5224 per 100,000

Most concentrated

  1. 1District of Columbia1 in 446
  2. 2South Carolina1 in 1,087
  3. 3Georgia1 in 1,587
  4. 4Maryland1 in 1,754
  5. 5Pennsylvania1 in 1,852
  6. 6Illinois1 in 1,961
  7. 7North Carolina1 in 1,961
  8. 8Virginia1 in 1,961

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Geographically, Sincere is one of the more regionally concentrated names in the country — more concentrated than 97% of the names used widely enough to compare. See the most regional names

Where Sincere is used — girls

Across 1910–2025, Sincere was most concentrated in Florida — about 1 in 100,000 girls, against 1 in 249,942 across all states with data. It was least common in Virginia (1 in —).

01 per 100,000

Most concentrated

  1. 1Florida1 in 100,000
  2. 2Georgia1 in 100,000
  3. 3Ohio1 in 100,000
  4. 4California1 in —
  5. 5Illinois1 in —
  6. 6Maryland1 in —
  7. 7Michigan1 in —
  8. 8North Carolina1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Sincere has too little recent state data to map, so this covers all years from 1910.

Sincere around the world

Where Sincere ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • France
    1906–1965
    #1,783
    in 1965
  • Canada
    2007–2023
    #1,627
    in 2023

Popularity data from Institut national de la statistique et des études économiques and Statistics Canada. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Sincere in other languages

Cross-language forms and variants of Sincere. Linked forms have their own page here.

Sincero

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Sincere by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#631
Trend vs 5 yrs ago
Down 29
Best rank ever
#544
2022
Peak year
2022
545 that year
First recorded
1976
Last recorded
2025
All-time count
10,095
Count in 2025
445

As a girl's name

Rank in 2025
#3,509
Trend vs 5 yrs ago
Down 499
Best rank ever
#2,164
2010
Peak year
2009
91 that year
First recorded
1982
Last recorded
2025
All-time count
1,472
Count in 2025
44

Names similar to Sincere

Matched on shared beginnings and endings, similar length, and comparable popularity.

Names with a curve like Sincere

Not spelling — timing. These names rose, peaked and faded in the same years as Sincere, so they read as being from the same moment even when they look nothing alike.

Sibling names for Sincere

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Sincere