Girls' name · since 1947
Sydni
Since 1947, U.S. Social Security records show 5,361 babies named Sydni, peaking in 2000. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #2,453 of 72,339
- all-time among girls
- #11,078 of 17,297
- 2025 SSA year
- 5,361
- born since 1947
- 2000s
- peak decade
5,361 babies have been named Sydni since 1947, making it today's #11078 girls' name.
Sydni has 5,361 recorded births among girls since 1947, per the U.S. Social Security Administration, ranked #11078 as of the latest data, more common than 36% of girls, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1947 to 2025.
- #2,453 of 72,339 all-time among girls
- #11,078 of 17,297 2025 SSA year
- 5,361 born since 1947
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Sydni ranks #2,453 of 72,339 girls' names by all-time recorded births (highest first) and #11,078 of 17,297 among girls' names in 2025. 5,361 born since 1947, peaking in the 2000s.
- #2,453 of 72,339
- all-time among girls
- #11,078 of 17,297
- 2025 SSA year
- 5,361
- born since 1947
- 2000s
- peak decade
Sydni's 5,361 recorded births place it above 96.6% of the 72,339 girls names in the full SSA archive.
37 jurisdictions carry state-level records, led by Texas.
How Sydni compares
5,361 Top 13% higher than 87% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Sydni's all-time total is 14x the median girls name, and Olivia still leads by a wide margin.
| Metric | Sydni | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 5,361 | 376 | 567,345 |
| Peak-year births | 468 | 21 | 19,840 |
Sydni's usage pattern, beyond the headline number
Sydni splits its recorded history at 2001: 50% of all births land in the more recent half, 50% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1947 (5 births) -- compare that against the 2000 peak of 468 for a sense of just how much the name's popularity has swung.
Sydni popularity over time
Annual U.S. births registered with the Social Security Administration · 1947–2025
- Peak year (2000)
- 468
- Annual births at peak, across 79 years of records
Sydni by decade
2000s is the heaviest window (2,503 births, 47% of the file).
2000s was Sydni's strongest decade.
2,503 babies received the name during that ten-year window, about 47% of all-time use.
Sydni births by decade
Total births in each ten-year window
- 1940s 5
1940s
5 births
- 1960s 9
1960s
9 births
- 1970s 18
1970s
18 births
- 1980s 217
1980s
217 births
- 1990s
1990s
1,946 births
- 2000s
2000s
2,503 births
- 2010s 575
2010s
575 births
- 2020s 88
2020s
88 births
What this shows Peak: 2000s at 2,503 births (47% of all-time use).
How Sydni compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Sydni's total volume
Sydni by state
Where Sydni concentrates geographically, total births since 1947
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Texas | | 495 | 9.2% |
| #2 | California | | 304 | 5.7% |
| #3 | Louisiana | | 225 | 4.2% |
| #4 | Georgia | | 224 | 4.2% |
| #5 | Florida | | 207 | 3.9% |
| #6 | Illinois | | 205 | 3.8% |
| #7 | Michigan | | 202 | 3.8% |
| #8 | Ohio | | 187 | 3.5% |
495 of 5,361 births nationwide. Compared to a flat distribution across 37 reporting states.
Sydni appears in 37 states. Explore state details →
Frequently Asked Questions
How popular is the name Sydni? ▼
Where does Sydni sit in the SSA name archive? ▼
When was Sydni most popular? ▼
Where is Sydni most popular? ▼
How long has the name Sydni been used? ▼
What names are similar to Sydni? ▼
What to do with Sydni's data
- Sydni's decade-level peak was the 2000s (2,503 total births); usage has since declined to 88 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Texas records the most Sydnis (495 births) -- see the full state breakdown if geography matters to your decision. Texas names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Sydni
Nearby Names Like Sydni
Names with a similar sound, spelling, or feel to Sydni
Compare Sydni side by side: Sydni vs Sydney Sydni vs Sydnee Sydni vs Sydnie
Related Names
Names with a similar popularity rank to Sydni
Nationwide names with similar peak year or record span
Two nationwide peer axes for Sydni: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2000)
Similar record span (~78 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1947–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Sydni draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.