girl's name
Kailyn
- Gender Girl
- Letters 6
- Popularity Uncommon
- Births on record 15,329
Scotland
#571
2014 births
Kailyn is a girl's name. In 2025 it was given to 118 babies in the United States. It is used consistently but remains uncommon.
- Peaked in 2011, when 799 babies were given the name.
- It has been falling over the past decade.
- Today about 1 in 28,096 babies in the United States is given this name.
- First appears in US birth records in 1981.
Kailyn over time
Births per decade in the United States, 1980s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1980s | 349 |
| 1990s | 2,429 |
| 2000s | 5,609 |
| 2010s | 4,980 |
| 2020s (to 2025) | 984 |
How popular is Kailyn?
In 2025, Kailyn was given to 118 babies in the United States. It is used consistently but remains uncommon.
Where Kailyn is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
How Kailyn is spelled
Birth registers count each spelling separately, so every one has its own ranking.
| Spelling | What it is | Births on record |
|---|---|---|
| Kaïlyn | Kaïlyn is a rare spelling of Kailyn, written with a diaeresis and recorded about 10 times, mostly in France. | 10 |
Names that peaked alongside Kailyn
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Kailyn also like
Names whose popularity has risen and fallen in step with Kailyn over the last century — the same taste, a different name.
Sibling names for Kailyn
Names from the same era that won't rhyme or share an initial with Kailyn — the two things that make a sibling set grate.
Common questions about Kailyn
How popular is the name Kailyn?
In 2025, Kailyn was given to 118 babies in the United States. It is used consistently but remains uncommon.
Is Kailyn a girl's or a boy's name?
Kailyn is given almost entirely to girls in birth records.
When was Kailyn most popular?
Kailyn peaked in 2011, when 799 babies were given the name. It has been falling over the past decade.
Is Kailyn a good name?
That is not something records can settle, but they can tell you what you would be choosing. Kailyn currently ranks #1,828 in the United States. It has been falling over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.