Total births
858
Unisex name · since 1962
Sian
Since 1962, U.S. Social Security records show 858 babies named Sian, peaking in 2006. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #11291
- among girls today
- 858
- born since 1962
- 2000s
- peak decade
- 36%
- more common than other girls
Sian currently ranks #11291 among unisex names in America, with 858 babies recorded since 1962.
Social Security Administration records show Sian recorded 858 times among girls since 1962, holding rank #11291 nationally today, ahead of 36% of girls, peaking in the 2000s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1962 to 2025.
- #11291 among girls today
- 858 born since 1962
- 2000s peak decade
- 36% more common than other girls
Data updated Jul 2026
The verdict
Sian is currently the #11291 unisex name in America, more common than 36% of girls - 858 born since 1962, peaking in the 2000s.
- #11291
- among girls today
- 858
- born since 1962
- 2000s
- peak decade
- 36%
- more common than other girls
Sian vs. every other girls name in current SSA rankings
#11291
of 17,726 girls in use
More common than 36% of names given to girls today.
2000s
Peak decade
29% of everyone ever named Sian was born in this single decade.
2006
Single peak year
35 babies were named Sian in 2006 - its busiest year on record.
How Sian compares
858 Top 34% higher than 66% of 17,726 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
Sian's all-time total is 125% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Sian | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 858 | 382 | 567,345 |
| Peak-year births | 35 | 48 | 19,840 |
Sian's usage pattern, beyond the headline number
Splitting Sian's full recorded timeline at 1995, 58% of its total births fall in the more recent half of the record versus 42% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1962, with just 5 recorded births -- worth weighing against the 2006 peak of 35 to see the full range of the name's swing in popularity.
Sian at a glance
Outside the top 1,000Peak year
2006
Current rank
#11,291
Active since
1962
Sian popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1962–2025
- Peak year (2006)
- 35
- Annual births at peak, across 64 years of records
Sian popularity over time - boys
172 total births recorded since 1995 (Sian as boys' name)
Sian by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Sian's strongest decade.
250 babies received the name during that ten-year window, about 29% of all-time use.
Sian births by decade
Total births in each ten-year window
- 1960s 73
1960s
73 births
- 1970s
1970s
127 births
- 1980s 99
1980s
99 births
- 1990s
1990s
144 births
- 2000s
2000s
250 births
- 2010s
2010s
112 births
- 2020s 53
2020s
53 births
What this shows Peak: 2000s at 250 births (29% of all-time use).
How Sian 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 Sian's total volume
Sian vs 15 similarly-sized girls names
Sian by state
Where Sian concentrates geographically, total births since 1962
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 42 | 4.9% |
| #2 | New York | | 6 | 0.7% |
| #3 | Texas | | 5 | 0.6% |
California share of Sian's total US births 4.9%
Even split
42 of 858 births nationwide. Compared to a flat distribution across 3 reporting states.
Frequently Asked Questions
How popular is the name Sian? ▼
Since 1962, Social Security records show 858 babies named Sian. Today it holds rank #11291 among girls. Its busiest year on record was 2006, with 35 births.
When was Sian most popular? ▼
Sian was most popular in the 2000s decade with 250 total births. The single peak year was 2006.
Where is Sian most popular? ▼
The top states for the name Sian are California (42 births), New York (6 births), Texas (5 births).
Is Sian a unisex name? ▼
Yes, Sian is used for both boys and girls. As a girl's name it has 858 births, and as a boy's name it has 172 births.
How long has the name Sian been used? ▼
The SSA has tracked Sian since 1962 -- 64 years through the most recent 2025 data.
What names are similar to Sian? ▼
Names with a similar sound or spelling include Sia, Siara, Sianna, Siana, and 4 more. These share a common prefix and are also used for girls.
What to do with Sian's data
- Sian's decade-level peak was the 2000s (250 total births); usage has since declined to 53 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Sians (42 births) -- see the full state breakdown if geography matters to your decision. California names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Sian
Nearby Names Like Sian
Names with a similar sound, spelling, or feel to Sian
Sia Girl
#1271 2,790 births
Siara Girl
#1714 2,132 births
Sianna Girl
#2002 2,052 births
Siana Girl
#3028 1,268 births
Siani Girl
#4442 1,166 births
Compare Sian side by side: Sian vs Sia Sian vs Siara Sian vs Sianna
Related Names
Names with a similar popularity rank to Sian
Deyanira #11290
1,957 births · Peak 1993
Shantel #11292
10,260 births · Peak 1990
Collin #11289
525 births · Peak 1985
Kona #11293
243 births · Peak 2019
Rainee #11288
700 births · Peak 1994
Raychel #11294
1,520 births · Peak 1995
Amarilis #11287
747 births · Peak 1990
Kc #11295
843 births · Peak 1990
Data Sources
Data as of July 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, 1962–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Sian: #11291 Unisex Name - 858 Births, Peak 2006." NameAlmanac. Accessed via https://namealmanac.com/name/sian. Licensed CC BY-SA 4.0.
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 Sian 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 July 2026.