MallowbyNames

Kaitlin

KAYT-lin · A variant of Caitlin, which is the Irish form of Catherine, meaning 'pure'.

2025 rank (girls)
#4,067
Babies named in 2025
35
Peak popularity
1995
2025 frequency
1 in 45,922 girls
Usually for
Girls
Trend
Declining since 1995

Declining since 1995, #4,067 for girls today.

Popularity of Kaitlin since 1971

Babies named Kaitlin per year in U.S. Social Security records.

1.2k2.4k3.6k198020002020Most births 1995Girls
Data table (by decade)
DecadeGirls
1970s166
1980s12,460
1990s30,820
2000s11,650
2010s2,058
2020s201

Meaning & origin

Kaitlin first appeared on U.S. birth records in 1971, and its popularity surged through the 1980s and 1990s, peaking at rank 4,067 in 1995. Since then, it has been in steady decline, with only 1 in 45,922 newborns receiving the name in 2025. The name is especially common in Texas. While often spelled in various ways, Kaitlin remains a recognizable and enduring variant of the classic Katherine.

Kaitlin is a modern Irish variant of Caitlin, itself derived from the Old French form of Catherine. Catherine ultimately comes from the Greek Aikaterine, which was associated with katharos, meaning 'pure'. The spelling Kaitlin emerged as a phonetic English variant in the late 20th century, particularly popular in the United States.

Where Kaitlin is most popular

Births per 100,000 girls by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k girlstoo few births

Nicknames & variants

Nicknames: Kait, Katie, Kate

Variants: Caitlin, Caitlyn, Katelyn, Kaitlyn

Sibling names for Kaitlin

Names that share Kaitlin's style, for a brother or sister.

Names like Kaitlin

Names whose popularity has moved with Kaitlin's over the last 50 years.

A parent animal hugging its little one, the personalized name page

K is for Kaitlin, our favorite little girl.

K is for Kaitlin…”

In a Mallowby alphabet book, Kaitlin's letter becomes Kaitlin's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Kaitlin's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Kaitlin mean?
Kaitlin is a variant of Caitlin, the Irish form of Catherine, meaning 'pure'.
How popular is the name Kaitlin?
As of 2025, Kaitlin ranks 4,067th, with about 1 in 45,922 newborns given the name. Its peak popularity was in 1995.
Is Kaitlin a boy or girl name?
Kaitlin is almost exclusively a girl's name.