Sonnie
Girl name · #4785 in 2025 · Very rare
How old is the name Sonnie? In official American birth records, Sonnie has been tracked continuously since 1938, giving it 87 years of documented American history.
Sonnie ranks #4785 among American girls' names as of 2025, with 28 newborns given the name that year. A decade ago it stood at #9481, so the name has been rising over the past ten years. Roughly one in every 64,286 girls born in 2025 was named Sonnie.
The 87-year story
Sonnie first appears in the Social Security records in 1938, when 5 girls received the name. Its all-time peak is essentially right now: 2025, with 28 babies and a rank of #4758. 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 Sonnie per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Sonnie against up to 5 other names.
Uniqueness: will there be another Sonnie in class?
On our rarity read — which blends how common Sonnie is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Sonnie will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sonnie is most common
State-level data for Sonnie 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 Sonnie
Statistically, parents drawn to Sonnie tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Lyndie, Elanie, Leonie, Teddie, and Daisie.
LyndieElanieLeonieTeddieDaisieIvorieShreeSaskia
Rank history (last 25 years)
| Year | Babies named Sonnie | Rank |
|---|---|---|
| 2025 | 28 | #4758 |
| 2024 | 18 | #6394 |
| 2023 | 20 | #5960 |
| 2022 | 14 | #7631 |
| 2021 | 19 | #6174 |
| 2020 | 16 | #6923 |
| 2019 | 12 | #8597 |
| 2018 | 13 | #8146 |
| 2017 | 12 | #8776 |
| 2016 | 12 | #8875 |
| 2015 | 11 | #9481 |
| 2014 | 7 | #13069 |
| 2013 | 9 | #11000 |
| 2012 | 7 | #13483 |
| 2011 | 10 | #10374 |
| 2010 | 10 | #10451 |
| 2009 | 7 | #13704 |
| 2007 | 10 | #10818 |
| 2006 | 9 | #11417 |
| 2005 | 6 | #14502 |
| 2004 | 11 | #9264 |
| 2003 | 10 | #9671 |
| 2002 | 10 | #9482 |
| 2001 | 5 | #15352 |
| 1999 | 14 | #6836 |
Frequently asked questions
How old is the name Sonnie?
In official American birth records, the name Sonnie first appeared in 1938 (over 87 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 87 years.
Is Sonnie a popular girl name?
Sonnie ranked #4785 among girls in 2025 with 28 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #9481.
When was the name Sonnie most popular?
Sonnie peaked in 2025, when 28 American girls received the name (ranked #4758 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Sonnie?
In 2025, roughly 1 in 64,286 newborn American girls was named Sonnie. 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.