Sianni
Girl name · #1629 in 2025 · Rare
How old is the name Sianni? In official American birth records, Sianni has been tracked continuously since 1996, giving it 29 years of documented American history.
In 2025, 128 baby girls were named Sianni, placing it at #1629 in the official national rankings. It has appeared in the national data since 1996. Roughly one in every 14,063 girls born in 2025 was named Sianni.
The 29-year story
Sianni first appears in the Social Security records in 1996, when 7 girls received the name. Its all-time peak is essentially right now: 2025, with 128 babies and a rank of #1622. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Sianni per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Sianni against up to 5 other names.
Uniqueness: will there be another Sianni in class?
On our rarity read — which blends how common Sianni is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Sianni will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sianni is most common
State-level data for Sianni is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Sianni
Statistically, parents drawn to Sianni tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Solani, Savani, Aylanni, Xianni, and Ailanni.
SolaniSavaniAylanniXianniAilanniCimaniRumaniNailani
Rank history (last 25 years)
| Year | Babies named Sianni | Rank |
|---|---|---|
| 2025 | 128 | #1622 |
| 2024 | 113 | #1779 |
| 2023 | 30 | #4565 |
| 2022 | 19 | #6229 |
| 2021 | 17 | #6691 |
| 2020 | 23 | #5314 |
| 2019 | 13 | #8138 |
| 2018 | 8 | #11427 |
| 2017 | 6 | #14124 |
| 2016 | 10 | #10113 |
| 2014 | 5 | #16513 |
| 2012 | 8 | #12199 |
| 2011 | 8 | #12153 |
| 2010 | 6 | #14959 |
| 2009 | 13 | #8888 |
| 2008 | 12 | #9476 |
| 2007 | 9 | #11630 |
| 2006 | 15 | #7868 |
| 2005 | 18 | #6528 |
| 2004 | 13 | #8259 |
| 2003 | 15 | #7207 |
| 2002 | 20 | #5673 |
| 2001 | 19 | #5822 |
| 2000 | 13 | #7580 |
| 1999 | 14 | #6836 |
Frequently asked questions
How old is the name Sianni?
In official American birth records, the name Sianni first appeared in 1996 (over 29 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 29 years.
Is Sianni a popular girl name?
Sianni ranked #1629 among girls in 2025 with 128 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked outside the reported range.
When was the name Sianni most popular?
Sianni peaked in 2025, when 128 American girls received the name (ranked #1622 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Sianni?
In 2025, roughly 1 in 14,063 newborn American girls was named Sianni. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.