Sidnei
- US rank
- Unranked
- Syllables
- 2
- Peak
- #13,386 in 1995
0 babies were named Sidnei in the US in 2025.
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US births per million girls, 1995–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Sidnei you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistorySidnei first shows up in US birth records in 1995, the first year at least 5 babies got it. It has been in use for 30 years since.
- Best yearIts best year was 1995, when it reached #13,386.
About the name Sidnei
Sidnei is a girl name of French origin. It has 6 letters and 2 syllables, starting with S and ending in “-nei”. US birth records list Sidnei for girls from 1995 to 2012, in 4 of those 18 years. Its best year was 1995, when it ranked #13,386 among girl names. It hasn't been given to 5 or more US babies in a year since 2012, so today it's a genuinely rare choice.
Origin:French names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1990s | 0.6 | 1,785,714 girls |
| 2000s | 0.7 | 1,449,275 girls |
| 2010s | 1.1 | 882,353 girls |
Other spellings of Sidnei
More French girl names
- Girl name: Charlotte · free
- Girl name: Evelyn · possibly desired
- Girl name: Violet · violet flower
- Girl name: Camila · temple attendant
- Girl name: Ellie · possibly light
- Girl name: Lainey · possibly light
- Unisex name: Avery · elf counsel
- Girl name: Eloise · possibly healthy, wide
Questions about the name Sidnei
What is the origin of the name Sidnei?
Sidnei has French roots in our records. Other French names include Charlotte, Evelyn, Violet.
Is Sidnei a boy or girl name?
Sidnei is a girl name.
How popular is the name Sidnei?
Sidnei is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 2012. It peaked at #13,386 in 1995.