Cy
Boy name · #2545 in 2025 · Very rare
How old is the name Cy? In official American birth records, Cy has been tracked continuously since 1902, giving it 123 years of documented American history.
Cy is currently the #2545 boy name in the United States — 52 babies received it in 2025. A decade ago it stood at #2212, so the name has been falling over the past ten years. Roughly one in every 34,615 boys born in 2025 was named Cy.
Babies named Cy per year. Source: Official national birth records.
The 123-year story
Cy first appears in the Social Security records in 1902, when 6 boys received the name. Its peak came in 2010, when 117 boys were named Cy — good for #1415 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. 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.
Unlock the 5-year forecast and compare Cy against up to 5 other names.
Uniqueness: will there be another Cy in class?
On our rarity read — which blends how common Cy is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Cy will likely be the only one in the room, with the occasional spelling-out as the price.
Where Cy is most common
State-level data for Cy 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 Cy
Statistically, parents drawn to Cy tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Ely, Ajay, Conley, Dany, and Rony.
ElyAjayConleyDanyRonyCaleMannySky
Rank history (last 25 years)
| Year | Babies named Cy | Rank |
|---|---|---|
| 2025 | 52 | #2539 |
| 2024 | 60 | #2345 |
| 2023 | 75 | #2014 |
| 2022 | 58 | #2408 |
| 2021 | 45 | #2775 |
| 2020 | 65 | #2139 |
| 2019 | 72 | #2020 |
| 2018 | 68 | #2083 |
| 2017 | 45 | #2715 |
| 2016 | 62 | #2184 |
| 2015 | 61 | #2212 |
| 2014 | 71 | #2000 |
| 2013 | 99 | #1568 |
| 2012 | 109 | #1478 |
| 2011 | 99 | #1573 |
| 2010 | 117 | #1415 |
| 2009 | 99 | #1604 |
| 2008 | 104 | #1543 |
| 2007 | 113 | #1433 |
| 2006 | 105 | #1460 |
| 2005 | 106 | #1402 |
| 2004 | 88 | #1516 |
| 2003 | 68 | #1764 |
| 2002 | 55 | #1998 |
| 2001 | 74 | #1600 |
Frequently asked questions
How old is the name Cy?
In official American birth records, the name Cy first appeared in 1902 (over 123 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 123 years.
Is Cy a popular boy name?
Cy ranked #2545 among boys in 2025 with 52 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2212.
When was the name Cy most popular?
Cy peaked in 2010, when 117 American boys received the name (ranked #1415 that year). Since 2010 the name has declined from that high.
How rare is the name Cy?
In 2025, roughly 1 in 34,615 newborn American boys was named Cy. 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.