Cy
How to say it: SY · /ˈsaɪ/
Short form of Cyrus (Persian 'sun') and Cyril (Greek 'lordly') - now sometimes standalone.
Cy was the 1,184th most popular boys’ name in the United States in 2025, given to 52 babies (Social Security Administration). Its busiest decade was the 2000s, its births are up about 20% in ten years, and it is projected to slip to #1,197 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #1,184 |
|---|---|
| Babies born in 2025 | 52 |
| Share of births | 1 in 24,199 |
| Peak decade | 2000s |
| Change over 10 years | +20% |
| Projected rank for 2030 (estimate) | #1,197 |
| In France, 2025 | #2,436 among boys’ names, 0 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Cy peaked in the 2000s.
What goes with it
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Cy is about under 1 in 200.
Around the world
This spelling is used in English, Greek.
In France: #2,436 for boys in 2025.
Famous people named Cy
- Cy Twombly (1928–2011)American painter, sculptor and photographer
- Cy Young (1867–1955)American baseball player
- Cy Young (1928–2017)American javelin thrower
From Wikidata and Wikipedia
Keep exploring
Find names you'll both love, starting with Cy
The one-minute style quiz.