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Sia

#1,107 in 2025Girls' name

Short form of Anastasia

Sia has been given to 2,795 babies in the U.S. since 1968. In 2025 it ranked #1,107 of 17,293 girls’ names in use. Its peak year was 2025, with 215 recorded.

Babies named Sia, 2025

1 in 15,400

Sia over time, 1880–2025

GirlsBoys
010020030018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Sia: meaning, origin, and history

Short form of Anastasia

Deeper origin not confirmed in the cited records

What Sia means

Sia is a short form of Anastasia.

Meaning behind the documented name family

The name developed through Sia → Anastasia. The family’s meaning is “resurrection”, recorded in English with the source elements anástasis.

Origin, language, and formation

Sia is used in English.

Related names and everyday forms

Related names include Anastasia.

American usage and historical context

In the United States, 2,790 girls were recorded with the name Sia between 1968 and 2025. Its highest annual count was 215 in 2025; its best national rank was #1,107 in 2025.

Over 5 years its rank rose, from #1,286 in 2020 to #1,107 in 2025. Over 10 years its rank rose, from #1,642 in 2015 to #1,107 in 2025.

In the United States, 5 boys were recorded with the name Sia between 1991 and 1991. Its highest annual count was 5 in 1991; its best national rank was #9,418 in 1991.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Sia?

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

Among all babies, 2025
1 in 15,400
215 of 3,315,165 births
Among girls only
1 in 7,480
0.01% of girls
Rank, 2025
#1,107
of 17,293 girls’ names in use
Coin-flip room size
10,689 kids
Even odds of a second one

Where Sia 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 5003%

Put another way: gather 10,689 children born in 2025 and it's an even bet that one of them is another Sia. In a class of 30 the chance is Under 1%.

When Sias were born

Half of everyone ever recorded as Sia was born before 2018 — so the typical Sia is around 7 today.

Median birth year
2018
About 7 years old
Biggest decade
2020s
40.1% of all use
Born in the last 25 years
89.6%
A modern name
Recorded since 1950
2,790
People you could plausibly meet
Choose a decade

2020s — 40.1% of all recorded uses (1,119).

Is Sia 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
+167
Places climbed
Rank vs 5 years ago
+179
Places climbed
Rank vs 10 years ago
+535
Places climbed
Births vs 10 years ago
1.64×
More babies than then
Share of its own peak
100.0%
Peak was 2025 (215)
Years since peak
Peaking now
At its all-time high
Year-to-year steadiness
Shifting
18.5% average annual change
Best rank ever
#1,107
2025

Where Sia is used

Across 2016–2025, Sia was most concentrated in Washington — about 1 in 3,030 girls, against 1 in 7,323 across all states with data. It was least common in Indiana (1 in 50,000).

233 per 100,000

Most concentrated

  1. 1Washington1 in 3,030
  2. 2New Jersey1 in 3,226
  3. 3California1 in 4,762
  4. 4New York1 in 6,250
  5. 5Illinois1 in 7,143
  6. 6Massachusetts1 in 7,143
  7. 7Maryland1 in 7,143
  8. 8Virginia1 in 7,692

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.

Sia around the world

Where Sia 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
    1997–2025
    #622
    in 2025
  • Scotland
    2010–2023
    #749
    in 2023
  • Northern Ireland
    2023–2023
    #391
    in 2023
  • Ireland
    2019–2025
    #544
    in 2025
  • France
    1980–2025
    #902
    in 2025
  • Canada
    2003–2024
    #365
    in 2024
  • South Australia
    1956–2013
    #328
    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.

Notable people named Sia

People whose public names include Sia, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Sia in other languages

Cross-language forms and variants of Sia. Linked forms have their own page here.

SeaSofiaTasiaNatasaAnastasia

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Sia by the numbers

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

As a girl's name

Rank in 2025
#1,107
Trend vs 5 yrs ago
Up 179
Best rank ever
#1,107
2025
Peak year
2025
215 that year
First recorded
1968
Last recorded
2025
All-time count
2,790
Count in 2025
215

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#9,418
1991
Peak year
1991
5 that year
First recorded
1991
Last recorded
1991
All-time count
5
Count in 2025
Under 5

Names similar to Sia

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

SiaraSianSianaSianiSiannaAysiaTasiaKasiaSiahDasiaCesiaSiarraStasiaTyasiaCassiaElisiaSianniAlisiaElysiaMyasiaKeasiaAlasiaDeasiaLesia

Names with a curve like Sia

Not spelling — timing. These names rose, peaked and faded in the same years as Sia, so they read as being from the same moment even when they look nothing alike.

ZinniaAmyraYusraMaelynnLailaniRipleyJuliettaAmarahYunaMemphisReyaLayan

Sibling names for Sia

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 Sia

Top names of 2025, Sia's peak yearThe 2020s in fullOther names that peaked in 2025Girls' names starting with S