MallowbyNames

Katlynn

KAT-lin · Of uncertain origin; typically considered a modern variant of Caitlin, itself an Irish form of Catherine, meaning 'pure'.

Peak popularity
1999
Usually for
Girls
Trend
Declining since 1998

Declining since 1998.

Popularity of Katlynn since 1984

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

891792681990200020102020Most births 1999Girls
Data table (by decade)
DecadeGirls
1980s217
1990s2,075
2000s1,413
2010s254
2020s16

Meaning & origin

Katlynn is a modern respelling of the Irish name Caitlin, which itself derives from Catherine. The name first appeared in U.S. Social Security records in 1984, reflecting a broader trend of creative spelling variations that emerged in the late 20th century. Katlynn reached its peak rank in 1999, but has been steadily declining in usage since 1998, a downward trajectory that continues through the latest data year of 2025. While Katlynn has not captured top state rankings, it represents a common pattern of name innovation: taking a traditional root and adapting it with fashionable suffixes and alternative spellings. This name is a clear example of how American naming preferences evolve over time, with parents seeking unique yet familiar-sounding options.

Katlynn is a modern respelling of Caitlin, which is the Irish form of Catherine, derived from the Greek Aikaterine. The name first appeared in records in the United States in 1984, reflecting a late-20th-century trend of creative spellings. It saw peak usage in 1999 and has since declined, but remains in occasional use.

Nicknames & variants

Nicknames: Kat, Katie, Lynn

Variants: Caitlin, Katelyn, Kaitlyn, Katelin, Kaitlin

Sibling names for Katlynn

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

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

K is for Katlynn, our favorite little girl.

K is for Katlynn…”

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

Make Katlynn's book

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

Questions parents ask

What does the name Katlynn mean?
Katlynn is generally considered a modern spelling variant of Caitlin, which is the Irish form of Catherine, meaning 'pure' from the Greek katharos. However, as a modern coinage, its meaning is tied to that traditional origin.
How popular is the name Katlynn currently?
Katlynn was first recorded in 1984 and peaked in popularity in 1999. Since 1998, its usage has been falling. As of 2025, it does not appear in the top 1000 names.
Is Katlynn a girl's name?
Yes, Katlynn is almost exclusively used as a girl's name.