Kaislyn
Girl name · #5223 in 2025 · Very rare
Kaislyn is currently the #5223 girl name in the United States — 25 babies received it in 2025. A decade ago it stood at #10148, so the name has been rising over the past ten years. Roughly one in every 72,000 girls born in 2025 was named Kaislyn.
Babies named Kaislyn per year. Source: SSA.
The 13-year story
Kaislyn first appears in the Social Security records in 2012, when 6 girls received the name. Its peak came in 2019, when 29 girls were named Kaislyn — good for #4653 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Kaislyn against up to 5 other names.
Uniqueness: will there be another Kaislyn in class?
On our rarity read — which blends how common Kaislyn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kaislyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kaislyn is most common
State-level data for Kaislyn is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Kaislyn
Statistically, parents drawn to Kaislyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Laiklyn, Kacelyn, Emerlyn, Haelyn, and Weslyn.
LaiklynKacelynEmerlynHaelynWeslynLovelynLailynRiverlyn
Rank history (last 25 years)
| Year | Babies named Kaislyn | Rank |
|---|---|---|
| 2025 | 25 | #5099 |
| 2024 | 22 | #5615 |
| 2023 | 24 | #5248 |
| 2022 | 20 | #5984 |
| 2021 | 24 | #5237 |
| 2020 | 17 | #6629 |
| 2019 | 29 | #4653 |
| 2018 | 9 | #10545 |
| 2017 | 14 | #7840 |
| 2016 | 10 | #10113 |
| 2015 | 10 | #10148 |
| 2014 | 14 | #8053 |
| 2012 | 6 | #14962 |
Frequently asked questions
Is Kaislyn a popular girl name?
Kaislyn ranked #5223 among girls in 2025 with 25 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #10148.
When was the name Kaislyn most popular?
Kaislyn peaked in 2019, when 29 American girls received the name (ranked #4653 that year). Since 2019 the name has declined from that high.
How rare is the name Kaislyn?
In 2025, roughly 1 in 72,000 newborn American girls was named Kaislyn. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.