Cylus
Cylus was the 3527th most popular name for boys in 2025, given to 32 babies. Its best year was 2012, when it ranked 1884th with 77 babies. Over the last ten years it has moved down 1,091 places. More babies were named Cylus in the 2010s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #3,527 boys, down 756 places since 2020
- Babies in 2025
- 32boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 201277 babies
- Total since 1880
- 902babies recorded
Cylus popularity since 1880
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #3,527 | 32 |
| 2020 | #2,771 | 44 |
| 2010 | #2,559 | 48 |
| 2000 | — | — |
| 1990 | — | — |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Cylus, counting every spelling?
Cylus is a spelling of Sylus, a name family that ranked #1,487 for boys in 2025 once every spelling is counted together, compared with #3,527 for Cylus on its own. Together these spellings went to 108 boys in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Sylus | 66 | #2,180 | 262 |
| Cylus | 32 | #3,527 | 182 |
| Silus | 10 | #8,156 | 43 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Cylus?
32 of the 3,606,400 babies born in the US in 2025 were named Cylus (0.01 per 1,000 births). For a boy named Cylus born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 261 (of 430 pupils) would have a child named Cylus.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Cylus?
About 900 people born in the US named Cylus are alive today, with a median age of 12; half are between 6 and 15. That makes Cylus a young name: most people with it are children.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Cylus by state
How common Cylus was among boys born in each state in 2021–2025. In 49 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Cylus: their share of US boys followed the most similar curve since 1880. If you like Cylus, they share its era and feel.
Questions about the name Cylus
How popular is the name Cylus?
Cylus was the 3527th most popular name for boys in 2025, given to 32 babies. Its best year was 2012, when it ranked 1884th with 77 babies. Over the last ten years it has moved down 1,091 places. More babies were named Cylus in the 2010s than in any other decade.
Is Cylus a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Cylus in the US.
Where is Cylus most popular?
In 2021–2025, Cylus was most common in Ohio (0.02 per 1,000 boys), followed by Texas and Texas.