MallowbyNames

Kaylinn

KAY-lin · A modern invented name, likely a combination of Kay and Lynn, meaning 'slender' or 'lake' by association.

2025 rank (girls)
#14,942
Babies named in 2025
5
Peak popularity
2014
2025 frequency
1 in 321,453 girls
Usually for
Girls
Trend
Declining since 2010

Declining since 2010, #14,942 for girls today.

Popularity of Kaylinn since 1989

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

1223351990200020102020Most births 2014Girls
Data table (by decade)
DecadeGirls
1980s6
1990s110
2000s215
2010s235
2020s40

Meaning & origin

Kaylinn is a modern American coinage that first appeared on the U.S. Social Security records in 1989. It belongs to the family of names ending in the popular -lyn suffix, which saw a surge in the late 20th and early 21st centuries. Its peak year was 2014, when it reached its highest rank, though it has been declining in use since 2010. As of 2025, it ranks 14,942, with a rarity of about 1 in 321,453 births. The name is constructed from Kay (often a short form of Katherine or a phonetic element) and Lynn (from Welsh 'lake'), though as a blend it carries no specific meaning. Kaylinn has not been recorded in any top state lists, indicating its use is scattered across the country. Its appeal lies in its modern, melodic sound and the familiar -lyn ending, common among names like Kaylyn and Hailey. While not historically rooted, it fits a contemporary naming pattern of inventiveness and phonetic appeal.

Kaylinn is a modern coinage, blending the popular name element Kay (often from Katherine or a respelling of the phonetic 'kay') with the suffix Lynn, which derives from a Welsh word for 'lake' or a short form of Linda. The name emerged in the late 20th century, fitting a trend of creating feminine names with the -linn/-lyn ending. It first appeared in U.S. records in 1989 and saw moderate use through the 1990s and 2000s, peaking in 2014.

Nicknames & variants

Nicknames: Kay, Linn, Kay Kay

Variants: Kaylyn, Kaylynn, Kailyn, Kaelyn

Sibling names for Kaylinn

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

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

K is for Kaylinn, our favorite little girl.

K is for Kaylinn…”

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

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Questions parents ask

What does Kaylinn mean?
Kaylinn does not have a traditional meaning; it is a modern invented name combining Kay and Lynn. The element Lynn originally derives from Welsh 'llyn' meaning 'lake' or is a short form of names like Linda.
How popular is Kaylinn?
Kaylinn is a rare name. In 2025, it ranked 14,942 in the U.S. and was given to an estimated 1 in 321,453 newborns. Its peak popularity was in 2014.
Is Kaylinn a boy or girl name?
Kaylinn is almost exclusively used for girls.