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Siaosi

#10,517 in 2025Boys' name

Literal meaning not recorded

Siaosi has been given to 304 babies in the U.S. since 1980. In 2025 it ranked #10,517 of 13,926 boys’ names in use. Its peak year was 2015, with 13 recorded.

Babies named Siaosi, 2025

1 in 474,000

Siaosi over time, 1880–2025

Boys
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Siaosi: meaning, origin, and history

Literal meaning not recorded

Deeper origin not confirmed in the cited records

What Siaosi means

Siaosi is a given name.

Origin, language, and formation

Siaosi is used in English, Samoan and Tongan.

Pronunciation and spelling

In Tongan, Siaosi is pronounced /si.a.o.si/.

American usage and historical context

In the United States, 304 boys were recorded with the name Siaosi between 1980 and 2025. Its highest annual count was 13 in 2015; its best national rank was #5,434 in 1980.

Over 5 years its rank fell, from #9,425 in 2020 to #10,517 in 2025. Over 10 years its rank fell, from #6,619 in 2015 to #10,517 in 2025.

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 Siaosi?

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

Among all babies, 2025
1 in 474,000
7 of 3,315,165 births
Among boys only
1 in 244,000
<0.01% of boys
Rank, 2025
#10,517
of 13,926 boys’ names in use
Coin-flip room size
328,272 kids
Even odds of a second one

Where Siaosi sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

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 328,272 children born in 2025 and it's an even bet that one of them is another Siaosi. In a class of 30 the chance is Under 1%.

When Siaosis were born

Half of everyone ever recorded as Siaosi was born before 2008 — so the typical Siaosi is around 17 today.

Median birth year
2008
About 17 years old
Biggest decade
2010s
31.6% of all use
Born in the last 25 years
69.1%
A modern name
Recorded since 1950
304
People you could plausibly meet
Choose a decade

2010s — 31.6% of all recorded uses (96).

Is Siaosi 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
−785
Places dropped
Rank vs 5 years ago
−1,092
Places dropped
Rank vs 10 years ago
−3,898
Places dropped
Births vs 10 years ago
0.54×
Fewer babies than then
Share of its own peak
53.8%
Peak was 2015 (13)
Years since peak
10
Years
Year-to-year steadiness
Shifting
23.0% average annual change
Best rank ever
#5,434
1980

Where Siaosi is used

Across 1910–2025, Siaosi was most concentrated in Hawaii — about 1 in 100,000 boys, against 1 in 541,066 across all states with data. It was least common in California (1 in —).

01 per 100,000

Most concentrated

  1. 1Hawaii1 in 100,000
  2. 2Utah1 in 100,000
  3. 3California1 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. Siaosi has too little recent state data to map, so this covers all years from 1910.

Siaosi by the numbers

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

As a boy's name

Rank in 2025
#10,517
Trend vs 5 yrs ago
Down 1,092
Best rank ever
#5,434
1980
Peak year
2015
13 that year
First recorded
1980
Last recorded
2025
All-time count
304
Count in 2025
7

Names similar to Siaosi

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

SiaireSiahMalosiSianNkosiSiamSiarSiakaSialeMosiSiavashSiakiSiaanSiairSiasAyomiposiKosiOlamiposiSia

Sibling names for Siaosi

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 Siaosi

Top names of 2015, Siaosi's peak yearThe 2010s in fullOther names that peaked in 1980Boys' names starting with SSamoan Boy NamesSamoan NamesTongan Boy NamesTongan Names