Cailynn
Cailynn was the 6588th most popular name for girls in 2025, given to 17 babies. Its best year was 2013, when it ranked 2635th; the most babies were born in 2009 (68). Over the last ten years it has moved down 3,618 places. More babies were named Cailynn in the 2010s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #6,588 girls, down 1,681 places since 2020
- Babies in 2025
- 17girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 200968 babies
- Total since 1880
- 1,183babies recorded
Cailynn popularity since 1880
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #6,588 | 17 |
| 2020 | #4,907 | 26 |
| 2010 | #3,016 | 56 |
| 2000 | #5,524 | 20 |
| 1990 | #13,263 | 5 |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Cailynn, counting every spelling?
Cailynn is a spelling of Kaylin, a name family that ranked #295 for girls in 2025 once every spelling is counted together, compared with #6,588 for Cailynn on its own. Together these spellings went to 1,103 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Kaylin | 126 | #1,644 | 834 |
| Kaylynn | 134 | #1,576 | 774 |
| Kailyn | 110 | #1,825 | 736 |
| Kaelyn | 131 | #1,601 | 728 |
| Kayleen | 70 | #2,524 | 559 |
| Kaelynn | 79 | #2,310 | 537 |
| Kailynn | 78 | #2,343 | 501 |
| Kaylyn | 70 | #2,525 | 372 |
| Kaylen | 61 | #2,796 | 363 |
| Cailyn | 40 | #3,728 | 261 |
| Kaileen | 33 | #4,299 | 242 |
| Kaylene | 37 | #3,947 | 224 |
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 Cailynn?
17 of the 3,606,400 babies born in the US in 2025 were named Cailynn (0.00 per 1,000 births). For a girl named Cailynn 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 495 (of 430 pupils) would have a child named Cailynn.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Cailynn?
About 1,200 people born in the US named Cailynn are alive today, with a median age of 15; half are between 10 and 20. That makes Cailynn mostly worn by children and young adults.
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.
Cailynn by state
How common Cailynn was among girls born in each state in 2021–2025. In 50 states fewer than five girls 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 Cailynn: their share of US girls followed the most similar curve since 1880. If you like Cailynn, they share its era and feel.
Questions about the name Cailynn
How popular is the name Cailynn?
Cailynn was the 6588th most popular name for girls in 2025, given to 17 babies. Its best year was 2013, when it ranked 2635th; the most babies were born in 2009 (68). Over the last ten years it has moved down 3,618 places. More babies were named Cailynn in the 2010s than in any other decade.
Is Cailynn a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Cailynn in the US.
Where is Cailynn most popular?
In 2021–2025, Cailynn was most common in Florida (0.01 per 1,000 girls).