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Sian

#16,921 in 2025UnisexGirls' nameBoys' name

God is gracious

Sian has been given to 1,030 babies in the U.S. since 1962. In 2025 it ranked #16,921 of 17,293 girls’ names in use. Its peak year was 2006, with 35 recorded. It's used for both sexes: 83% girls, 17% boys all-time.

Babies named Sian, 2025

1 in 663,000

Sian over time, 1880–2025

GirlsBoys
01020304018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Sian over time

In 2025, Sian went to 16% girls and 84% boys.

19622025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Sian: meaning, origin, and history

God is gracious

Hebrew and Welsh

What Sian means

Sian means “God is gracious”, associated with Yôḥānāh.

Dictionary etymologyReferences, data & attribution

An anglicization of Welsh Siân, ultimately from Latin Joanna, from Koine Greek Ἰωάννα (Iōánna), from Hebrew יוֹחָנָה (Yôḥānāh, literally “God is gracious”), the feminized form of יְהוֹחָנָן (Yəhōḥānān) which produced John and its many doublets. Doublet of Ivana, Jana, Jane, Janice, Janis, Jean, Jeanne, Jen, Joan, Joanna, Joanne, Johanna, Juana, Shavonne, Siobhan, Shane, Shaun, Shauna, and Sheena.

Excerpt from Wiktionary: Sian (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Sian is used in English. Its origins include Hebrew and Welsh.

Sian comes through Welsh Siân, Latin Joanna, Koine Greek Ἰωάννα and Hebrew יוֹחָנָה.

Related names and everyday forms

Related names include Siân, יְהוֹחָנָן, Ivana, Jana, Jane, Janice, Janis, Jean, Jeanne and Jen.

Pronunciation and spelling

In English, Sian is pronounced /ʃɑn/.

American usage and historical context

In the United States, 858 girls were recorded with the name Sian between 1962 and 2025. Its highest annual count was 35 in 2006; its best national rank was #2,675 in 1974.

Over 5 years its rank fell, from #7,517 in 2020 to #16,921 in 2025. Over 10 years its rank fell, from #9,408 in 2015 to #16,921 in 2025.

In the United States, 172 boys were recorded with the name Sian between 1995 and 2025. Its highest annual count was 26 in 2025; its best national rank was #4,122 in 2025.

Over 5 years its rank rose, from #6,978 in 2020 to #4,122 in 2025.

How common is Sian?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 663,000
5 of 3,315,165 births
Among girls only
1 in 321,000
<0.01% of girls
Rank, 2025
#16,921
of 17,293 girls’ names in use
Coin-flip room size
459,581 kids
Even odds of a second one

Where Sian sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 459,581 children born in 2025 and it's an even bet that one of them is another Sian. In a class of 30 the chance is Under 1%.

When Sians were born

Half of everyone ever recorded as Sian was born before 1999 — so the typical Sian is around 26 today.

Median birth year
1999
About 26 years old
Biggest decade
2000s
29.1% of all use
Born in the last 25 years
46.5%
Spread across generations
Recorded since 1950
858
People you could plausibly meet
Choose a decade

2000s — 29.1% of all recorded uses (250).

Is Sian rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−4,918
Places dropped
Rank vs 5 years ago
−9,404
Places dropped
Rank vs 10 years ago
−7,513
Places dropped
Births vs 10 years ago
0.42×
Fewer babies than then
Share of its own peak
14.3%
Peak was 2006 (35)
Years since peak
19
Years
Year-to-year steadiness
Volatile
47.1% average annual change
Best rank ever
#2,675
1974

Spellings of Sian

Sian is not the most common spelling — Susan is, with 28.6% against Sian's 0.02%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Sian is used — girls

Across 1910–2025, Sian was most concentrated in California — about 1 in — girls, against 1 in 769,813 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2New York1 in —
  3. 3Texas1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Sian has too little recent state data to map, so this covers all years from 1910.

Where Sian is used — boys

Across 1910–2025, Sian was most concentrated in Florida — about 1 in — boys, against 1 in 1,211,363 across all states with data.

00 per 100,000

Most concentrated

  1. 1Florida1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Sian has too little recent state data to map, so this covers all years from 1910.

Sian around the world

Where Sian ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2025
    #3,035
    in 2025
  • Scotland
    1974–2013
    #564
    in 2013
  • Northern Ireland
    1997–2017
    #432
    in 2017
  • Ireland
    1972–2013
    #747
    in 2013
  • France
    1997–2023
    #6,490
    in 2023
  • Canada
    1991–2015
    #2,823
    in 2015
  • South Australia
    1960–2013
    #818
    in 2013

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Sian by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#16,921
Trend vs 5 yrs ago
Down 9,404
Best rank ever
#2,675
1974
Peak year
2006
35 that year
First recorded
1962
Last recorded
2025
All-time count
858
Count in 2025
5

As a boy's name

Rank in 2025
#4,122
Trend vs 5 yrs ago
Up 2,856
Best rank ever
#4,122
2025
Peak year
2025
26 that year
First recorded
1995
Last recorded
2025
All-time count
172
Count in 2025
26

Names similar to Sian

Matched on shared beginnings and endings, similar length, and comparable popularity.

SianiSianaSiahLianSiaraSiarraSianniSiaIanSiannaSiarahArianRianRhianKianLylianLyllianSiariKillianShianLydianElianLivianJilian

Sibling names for Sian

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Sian

Top names of 2006, Sian's peak yearThe 2000s in fullOther names that peaked in 1974Girls' names starting with SWelsh Girl Names