Sianni
Feminine
Sianni is a recent American coinage on the Si- front and the -anni ending, in the pattern that also produced Gianni, Zianni and Tianni.
How old is the name Sianni?
Sianni first appears in US birth records in 1996 — 29 years ago. The typical Sianni is a kid of about 3 — this name's wave is very recent. About 600 people named Sianni are estimated to be alive in the US today.
When was the name Sianni most popular?
Sianni peaked in 2025, reaching #1622 nationally. Today it ranks #1622, exactly where it peaked. See the whole 2025 chart.
Lists built from the same records:
Where it comes from
Origin, sound and short forms
Our story of Sianni
Our story of Sianni is a story of an Italian ending on an American front. Gianni came into American hearing as an Italian name — the everyday form of Giovanni — and its shape proved portable: Zianni, Tianni, Sianni all appear in the registers within a decade of each other. None of them is Italian. Sianni arrives in the 2000s from that pattern, and its history, honestly stated, is a decade long and entirely American.
Meaningnot established
Not established
No established etymology. The -anni ending circulates from Gianni, itself the Italian short form of Giovanni; the Si- front is a free-standing sound. Occasional attributions to Welsh Siân, which is Jane, are not documented for this compound. It is a modern American coinage.
Pronouncing Sianni
see-AH-nee
Three syllables, stress in the middle. Some bearers say SHAH-nee, following the Welsh Siân.
Nicknames for Sianni
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1996
- Most girls named
- 2025128 — the highest on record
- Peak rank
- #1622reached in 2025
- Change vs 2024
- +13.3%128 in 2025, from 113
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Sianni in other languages
The same name elsewhere
- Siani in English — spelling variant
- Ziani in English — related form
- Siân in Welsh — related form
Strongest US states over the last decade: Texas, California, Florida.
Siannis among us
people named Sianni are estimated to be alive in the US today
About 1 girl in 12,557 born in 2025 was named Sianni
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Sianni
- #1622
- Sianni on the 2025 chart
- #720
- counting every spelling
The SSA counts spellings, not names. Sianni went to 128 girls in 2025, but Siani, Ciani and Cianni and the rest below are the same name said out loud. Together the 9 spellings went to 242, which makes it the 720th most-given girls’ name of the year — 902 places above the chart.
and 1 rarer spelling.
About 1 girl in 6,642 born in 2025 was given one of these spellings — against 1 in 12,557 for Sianni itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Shelbey test
Every popular name lives one long story — a climb, a peak, a slow settling back. Sianni's later chapters haven't been written yet, so we borrowed them: Shelbey climbed just as high around 1992, and its whole arc is on record. Line the two peaks up, and Shelbey's path sketches the road Sianni is walking now.
Sianni is climbing fast right now. Steep climbs tend to come with steep descents — the quicker a name arrives, the more firmly it belongs to its moment.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Sianni is headed
Sianni is on a steep climb — if the curve holds, 2030 could see around 155% more babies given the name than today. Its history is short or jumpy, though, so read this as a sketch rather than a promise.
Low confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Sianni beside its neighbors
The names ranked closest to Sianni in 2025, in babies rather than position — the bars are to scale.
US girls given each name in 2025.
The trade-off
- Anni is available as a short form with a real European record.
- Three syllables of open vowels, which carries unusually well.
- It belongs to a real and documented wave of American name-building.
- There is no inherited meaning, and honest sources say so.
- The initial consonant splits between two readings.
- It is very new and will need spelling out.
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What they receive
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Sianni
Feminine · #1622 in the U.S.
Frequently asked
- How many Siannis are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 600 people named Sianni are estimated to be alive in the US today.
- How do you spell Sianni?
- Sianni is the most-used spelling in US records — 128 of the 242 babies given the name in 2025. The others recorded are Siani, Ciani, Cianni, Siyani, Cyani, Siyanni and Syanni.
- How popular is the name Sianni in 2025?
- Sianni ranks #1622 among US girl names in 2025, with 128 babies given the name.
- How rare is the name Sianni?
- About 1 in every 12,557 US girls born in 2025 was named Sianni — 128 in all.
- Will my child share the name Sianni with classmates?
- Sianni will almost certainly be the only one in school.
Ranked beside Sianni
Names sitting at a similar level of popularity right now.
Yvette#1622 · Nell#1622 · Isis#1622 · Nadine#1622 · Eris#1622 · Cristina#1622 · Estela#1622 · Mazikeen#1622
Looking for what else is popular rather than what resembles Sianni? See the current top 100.
Choosing between Sianni and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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