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Siani

#3,699 in 2025Girls' name

Diminutive of Siân

Siani has been given to 1,166 babies in the U.S. since 1991. In 2025 it ranked #3,699 of 17,293 girls’ names in use. Its peak year was 1998, with 88 recorded.

Babies named Siani, 2025

1 in 80,900

Siani over time, 1880–2025

Girls
025507510018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Siani: meaning, origin, and history

Diminutive of Siân

Deeper origin not confirmed in the cited records

What Siani means

Siani is a diminutive of Siân.

Origin, language, and formation

Siani is used in Welsh.

Related names and everyday forms

Related names include Siân and Jenny.

Pronunciation and spelling

In Welsh, Siani is pronounced /ʃanɪ/.

American usage and historical context

In the United States, 1,166 girls were recorded with the name Siani between 1991 and 2025. Its highest annual count was 88 in 1998; its best national rank was #1,783 in 1998.

Over 5 years its rank rose, from #5,821 in 2020 to #3,699 in 2025. Over 10 years its rank rose, from #8,875 in 2015 to #3,699 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 Siani?

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

Among all babies, 2025
1 in 80,900
41 of 3,315,165 births
Among girls only
1 in 39,200
<0.01% of girls
Rank, 2025
#3,699
of 17,293 girls’ names in use
Coin-flip room size
56,047 kids
Even odds of a second one

Where Siani 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 56,047 children born in 2025 and it's an even bet that one of them is another Siani. In a class of 30 the chance is Under 1%.

When Sianis were born

Half of everyone ever recorded as Siani was born before 2002 — so the typical Siani is around 23 today.

Median birth year
2002
About 23 years old
Biggest decade
2000s
36.0% of all use
Born in the last 25 years
58.1%
A modern name
Recorded since 1950
1,166
People you could plausibly meet
Choose a decade

2000s — 36.0% of all recorded uses (420).

Is Siani 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
+759
Places climbed
Rank vs 5 years ago
+2,122
Places climbed
Rank vs 10 years ago
+5,176
Places climbed
Births vs 10 years ago
3.15×
More babies than then
Share of its own peak
46.6%
Peak was 1998 (88)
Years since peak
27
Years
Year-to-year steadiness
Volatile
37.2% average annual change
Best rank ever
#1,783
1998

Spellings of Siani

Siani is not the most common spelling — Diane is, with 37.8% against Siani's 0.09%.

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 Siani is used

Across 1910–2025, Siani was most concentrated in Pennsylvania — about 1 in 14,286 girls, against 1 in 62,051 across all states with data. It was least common in Texas (1 in —).

07 per 100,000

Most concentrated

  1. 1Pennsylvania1 in 14,286
  2. 2New Jersey1 in 33,333
  3. 3Delaware1 in 50,000
  4. 4Florida1 in —
  5. 5Georgia1 in —
  6. 6New York1 in —
  7. 7Texas1 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. Siani has too little recent state data to map, so this covers all years from 1910.

Siani around the world

Where Siani 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
    1996–2007
    #5,201
    in 2007
  • South Australia
    1980–1980
    #634
    in 1980

Popularity data from Office for National Statistics and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.

Siani by the numbers

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

As a girl's name

Rank in 2025
#3,699
Trend vs 5 yrs ago
Up 2,122
Best rank ever
#1,783
1998
Peak year
1998
88 that year
First recorded
1991
Last recorded
2025
All-time count
1,166
Count in 2025
41

Names similar to Siani

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

SianaSiaraSianSiarraSiannaKianiDyaniSianniLianiIlaniTianiCianiChaniUlaniVaaniJoaniAsaniKlaniDasaniElaniKamaniAulaniKeaniKymani

Sibling names for Siani

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 Siani

Top names of 1998, Siani's peak yearThe 1990s in fullOther names that peaked in 1998Girls' names starting with SUncommon Welsh Girl Names