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.

#8,350 of 72,339
all-time among girls
#15,234 of 17,297
2025 SSA year
858
born since 1962
2000s
peak decade

Sian currently ranks #15234 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 #15234 nationally today, ahead of 12% 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.

  • #8,350 of 72,339 all-time among girls
  • #15,234 of 17,297 2025 SSA year
  • 858 born since 1962
  • 2000s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Sian ranks #8,350 of 72,339 girls' names by all-time recorded births (highest first) and #15,234 of 17,297 among girls' names in 2025. 858 born since 1962, peaking in the 2000s.

#8,350 of 72,339
all-time among girls
#15,234 of 17,297
2025 SSA year
858
born since 1962
2000s
peak decade
0%100%Median name50%11.9%
Sian vs. every other girls name in current SSA rankings
Above the archive median
All-time archive position

Sian's 858 recorded births place it above 88.45% of the 72,339 girls names in the full SSA archive.

3 jurisdictions
State-record footprint

The state file records this name in 3 jurisdictions, led by California.

How Sian compares

858 Top 35% higher than 65% 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

Sian's all-time total is 128% above the median girls name, and Olivia still leads by a wide margin.

Metric Sian Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 858 376 567,345
Peak-year births 35 21 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 popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1962–2025

Outside the top 1,000
Peak year (2006)
35
Annual births at peak, across 64 years of records
010203040 196219711980198819962004201220202025 5

Sian popularity over time - boys

172 total births recorded since 1995 (Sian as boys' name)

Unisex variant - 172 births
051015202530 1995200220102016201920222025 26

Sian by decade

2000s is the heaviest window (250 births, 29% of the file).

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

births

What this shows Peak: 2000s at 250 births (29% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

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 Scatter plot of 16 data points. 0%5%10%15% 050100150 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -15, 11.8%-19, 12.9%-53, 5.8%-52, 4.9%-39, 7.7%-38, 7.2%-37, 4.2%-22, 8.3%-110, 4.1%-51, 6.7%-143, 2.6%-108, 6.8%-55, 6.3%-45, 6.4%-34, 7.5%Sian-64, 4.1%Sian
Sian vs 15 similarly-sized girls names

Sian by state

Where Sian concentrates geographically, total births since 1962

Geographically diffuse
Top 3 states by recorded births for the name Sian
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. Across the full SSA archive it ranks #8,350 of 72,339 girls' names by total births. In 2025, it holds #15,234 of 17,297 among girls. Its busiest year on record was 2006, with 35 births.
Where does Sian sit in the SSA name archive?
According to the U.S. Social Security Administration, Sian ranks #8,350 of 72,339 girls' names by all-time recorded births (highest first) and #15,234 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
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

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

Names with a similar popularity rank to Sian

Nationwide names with similar peak year or record span

Two nationwide peer axes for Sian: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

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, 1962–2025 (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 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 August 2026.