Sianna
Girl name · #2143 in 2025 · Very rare
How old is the name Sianna? In official American birth records, Sianna has been tracked continuously since 1978, giving it 47 years of documented American history.
In 2025, 87 baby girls were named Sianna, placing it at #2143 in the official national rankings. A decade ago it stood at #3211, so the name has been rising over the past ten years. Roughly one in every 20,690 girls born in 2025 was named Sianna.
The 47-year story
Sianna first appears in the Social Security records in 1978, when 6 girls received the name. Its all-time peak is essentially right now: 2024, with 98 babies and a rank of #1997. 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 Sianna per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Sianna against up to 5 other names.
Uniqueness: will there be another Sianna in class?
On our rarity read — which blends how common Sianna is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Sianna will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sianna is most common
Geography matters for names, and Sianna is no exception. Adjusted for how many girls are born in each state, Sianna is most common in FL (0.1 per 1,000), CA (0.1 per 1,000), TX (0.1 per 1,000) — against a national average of about 0.1 per 1,000 girls. These are per-capita rates, so they show where Sianna is a genuine regional favorite rather than just where the most babies are born.
Names like Sianna
Statistically, parents drawn to Sianna tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Mianna, Senna, Sedona, Lucianna, and Evanna.
MiannaSennaSedonaLuciannaEvannaLiannaViannaHosanna
Rank history (last 25 years)
| Year | Babies named Sianna | Rank |
|---|---|---|
| 2025 | 87 | #2139 |
| 2024 | 98 | #1997 |
| 2023 | 91 | #2107 |
| 2022 | 80 | #2319 |
| 2021 | 90 | #2103 |
| 2020 | 66 | #2580 |
| 2019 | 62 | #2729 |
| 2018 | 70 | #2508 |
| 2017 | 69 | #2546 |
| 2016 | 46 | #3411 |
| 2015 | 51 | #3211 |
| 2014 | 45 | #3486 |
| 2013 | 56 | #2973 |
| 2012 | 53 | #3134 |
| 2011 | 84 | #2238 |
| 2010 | 60 | #2870 |
| 2009 | 80 | #2396 |
| 2008 | 79 | #2419 |
| 2007 | 95 | #2117 |
| 2006 | 91 | #2127 |
| 2005 | 54 | #2969 |
| 2004 | 38 | #3748 |
| 2003 | 69 | #2393 |
| 2002 | 77 | #2158 |
| 2001 | 50 | #2881 |
Frequently asked questions
How old is the name Sianna?
In official American birth records, the name Sianna first appeared in 1978 (over 47 years ago), when 6 newborn girls received the name. It has been tracked in modern national records for 47 years.
Is Sianna a popular girl name?
Sianna ranked #2143 among girls in 2025 with 87 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #3211.
When was the name Sianna most popular?
Sianna peaked in 2024, when 98 American girls received the name (ranked #1997 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Sianna?
In 2025, roughly 1 in 20,690 newborn American girls was named Sianna. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.