Sincere Boy
How popular is Sincere?
#628 boy name in 2025
445 baby boys were named Sincere in the US in 2025, making it the 628th most popular boy name. Another 44 girls got the name (#3,458 for girls).
Sincere popularity over time
Boys Girls
| Rank in 2025 | #628 for boys (▼ 28 from 2024) |
|---|---|
| Babies in 2025 | 445 boys, 44 girls |
| 10-year trend | Steady (+4% babies vs 2015) |
| Earlier ranks | #626 in 2015, #602 in 2020 |
| Peak year | 2022 (545 boys) |
| Highest rank | #542 in 2022 |
| First recorded | 1976 |
| Boys vs girls (last 10 years) | 92% boys, 8% girls |
| Chance a classmate shares it | 0.4% in a class of 25 kids born in 2025 |
Sincere counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Sincere family of names ranked #481 for boys in 2025 (#452 the year before), with 615 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Sincere | 445 | 72% |
| Syncere | 170 | 28% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Sincere is most popular
Babies named Sincere per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- District of Columbia: 2.4 per 1,000 (35 boys)
- South Carolina: 0.9 per 1,000 (89 boys)
- Georgia: 0.8 per 1,000 (193 boys)
- Maryland: 0.7 per 1,000 (84 boys)
- Pennsylvania: 0.6 per 1,000 (153 boys)
Sincere by decade
Boy names about as popular as Sincere
Questions
- Is Sincere a boy or girl name?
- Sincere is mostly a boy name. Over the last 10 years, 92% of babies named Sincere were boys.
- How popular is the name Sincere?
- 445 baby boys were named Sincere in the US in 2025, making it the 628th most popular boy name. Another 44 girls got the name (#3,458 for girls).
- When was Sincere most popular?
- Sincere peaked in 2022, when 545 boys were given the name. Its highest rank was #542 in 2022.
- How many people are named Sincere?
- 11,567 babies have been named Sincere in the US since 1880. We estimate about 11,471 of them are alive in 2026, with a median age of 12.
- Where is Sincere most popular?
- From 2021 to 2025, Sincere was most common in District of Columbia, at 2.4 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.