Kailin
#7,292 in 2025UnisexGirls' nameBoys' nameMeaning not yet documented
Kailin has been given to 1,410 babies in the U.S. since 1981. In 2025 it ranked #7,292 of 17,293 girls’ names in use. Its peak year was 1997, with 57 recorded. It's used for both sexes: 87% girls, 13% boys all-time.
Babies named Kailin, 2025
1 in 221,000
Kailin over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Kailin over time
In 2025, Kailin went to 100% girls and 0% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Kailin?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 221,000
- 15 of 3,315,165 births
- Among girls only
- 1 in 107,000
- <0.01% of girls
- Rank, 2025
- #7,292
- of 17,293 girls’ names in use
- Coin-flip room size
- 153,194 kids
- Even odds of a second one
Where Kailin sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 153,194 children born in 2025 and it's an even bet that one of them is another Kailin. In a class of 30 the chance is Under 1%.
When Kailins were born
Half of everyone ever recorded as Kailin was born before 2003 — so the typical Kailin is around 22 today.
- Biggest decade
- 2000s
- 35.7% of all use
- Born in the last 25 years
- 57.7%
- A modern name
- Recorded since 1950
- 1,221
- People you could plausibly meet
2000s — 35.7% of all recorded uses (436).
Is Kailin rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- −510
- Places dropped
- Rank vs 5 years ago
- +879
- Places climbed
- Rank vs 10 years ago
- −1,159
- Places dropped
- Births vs 10 years ago
- 0.71×
- Fewer babies than then
- Share of its own peak
- 26.3%
- Peak was 1997 (57)
- Years since peak
- 28
- Years
- Year-to-year steadiness
- Volatile
- 39.0% average annual change
Spellings of Kailin
Kailin is not the most common spelling — Kaitlyn is, with 20.4% against Kailin's 0.15%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Kailin is used
Across 1910–2025, Kailin was most concentrated in Arizona — about 1 in — girls, against 1 in 554,347 across all states with data. It was least common in Texas (1 in —).
Most concentrated
- 1Arizona1 in —
- 2California1 in —
- 3Illinois1 in —
- 4Indiana1 in —
- 5New York1 in —
- 6Pennsylvania1 in —
- 7Texas1 in —
Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Kailin has too little recent state data to map, so this covers all years from 1910.
Kailin around the world
Where Kailin ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- Canada1992–2004#2,752in 2004
Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.
Kailin by the numbers
The raw record for each sex the name is used for.
As a girl's name
Names similar to Kailin
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Kailin
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.