Kailyn
Kailyn was the 1825th most popular name for girls in 2025, given to 110 babies. Its best year was 2011, when it ranked 397th with 793 babies. Over the last ten years it has moved down 1,166 places. More babies were named Kailyn in the 2000s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #1,825 girls, down 629 places since 2020
- Babies in 2025
- 110girls
- Girls and boys
- 93% girls, 7% boys2021–2025
- Peak year
- 2011793 babies
- Total since 1880
- 14,351babies recorded
Kailyn popularity since 1880
| Year | Rank (girls) | Rank (boys) | Babies (girls) | Babies (boys) |
|---|---|---|---|---|
| 2025 | #1,825 | #9,293 | 110 | 8 |
| 2020 | #1,196 | — | 193 | — |
| 2010 | #443 | #5,886 | 696 | 15 |
| 2000 | #593 | #8,665 | 431 | 7 |
| 1990 | #1,610 | — | 93 | — |
| 1980 | — | — | — | — |
| 1970 | — | — | — | — |
| 1960 | — | — | — | — |
| 1950 | — | — | — | — |
| 1940 | — | — | — | — |
| 1930 | — | — | — | — |
| 1920 | — | — | — | — |
| 1910 | — | — | — | — |
| 1900 | — | — | — | — |
| 1890 | — | — | — | — |
| 1880 | — | — | — | — |
How popular is Kailyn, counting every spelling?
Kailyn is a spelling of Kaylin, a name family that ranked #295 for girls in 2025 once every spelling is counted together, compared with #1,825 for Kailyn 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 Kailyn?
110 of the 3,606,400 babies born in the US in 2025 were named Kailyn (0.03 per 1,000 births). For a girl named Kailyn 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 76 (of 430 pupils) would have a child named Kailyn.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Kailyn?
About 14,100 people born in the US named Kailyn are alive today, with a median age of 18; half are between 13 and 25. That makes Kailyn 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.
Kailyn by state
How common Kailyn was among girls born in each state in 2021–2025. It is notably more common than nationally in South Carolina (2.9×), Georgia (2.2×), North Carolina (1.9×), Virginia (1.8×). In 30 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 Kailyn: their share of US girls followed the most similar curve since 1880. If you like Kailyn, they share its era and feel.
Questions about the name Kailyn
How popular is the name Kailyn?
Kailyn was the 1825th most popular name for girls in 2025, given to 110 babies. Its best year was 2011, when it ranked 397th with 793 babies. Over the last ten years it has moved down 1,166 places. More babies were named Kailyn in the 2000s than in any other decade.
Is Kailyn a boy or girl name?
In 2021–2025, 93% girls, 7% boys given the name Kailyn in the US.
Where is Kailyn most popular?
In 2021–2025, Kailyn was most common in South Carolina (0.27 per 1,000 girls), followed by Georgia and North Carolina.