Cy
Boy name · #2545 in 2025 · Very rare
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: SSA.
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
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: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.