Kaislyn

#5,156 in 2025Girls' name

Meaning not yet documented

Kaislyn has been given to 224 babies in the U.S. since 2012. In 2025 it ranked #5,156 of 17,293 girls’ names in use. Its peak year was 2019, with 29 recorded.

Babies named Kaislyn, 2025

1 in 133,000

Kaislyn over time, 1880–2025

Girls
010203018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

How common is Kaislyn?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 133,000
25 of 3,315,165 births
Among girls only
1 in 64,300
<0.01% of girls
Rank, 2025
#5,156
of 17,293 girls’ names in use
Coin-flip room size
91,917 kids
Even odds of a second one

Where Kaislyn sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

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.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 91,917 children born in 2025 and it's an even bet that one of them is another Kaislyn. In a class of 30 the chance is Under 1%.

When Kaislyns were born

Half of everyone ever recorded as Kaislyn was born before 2021 — so the typical Kaislyn is around 4 today.

Median birth year
2021
About 4 years old
Biggest decade
2020s
58.9% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
224
People you could plausibly meet
Choose a decade

2020s — 58.9% of all recorded uses (132).

Is Kaislyn 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
+545
Places climbed
Rank vs 5 years ago
+1,606
Places climbed
Rank vs 10 years ago
+5,319
Places climbed
Births vs 10 years ago
2.50×
More babies than then
Share of its own peak
86.2%
Peak was 2019 (29)
Years since peak
6
Years
Year-to-year steadiness
Volatile
42.5% average annual change
Best rank ever
#4,708
2019

Spellings of Kaislyn

Kaislyn is not the most common spelling — Kaitlyn is, with 28.4% against Kaislyn's 0.04%.

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 Kaislyn is used

Across 1910–2025, Kaislyn was most concentrated in Louisiana — about 1 in — girls, against 1 in 421,799 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1Louisiana1 in —
  2. 2Texas1 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. Kaislyn has too little recent state data to map, so this covers all years from 1910.

Kaislyn around the world

Where Kaislyn 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.

  • Canada
    2019–2019
    #3,370
    in 2019

Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.

Kaislyn by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#5,156
Trend vs 5 yrs ago
Up 1,606
Best rank ever
#4,708
2019
Peak year
2019
29 that year
First recorded
2012
Last recorded
2025
All-time count
224
Count in 2025
25

Names similar to Kaislyn

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Kaislyn

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Kaislyn