Spellings

Kaitlyn or Katelyn?

In the US in 2025, 42% of babies in this name family were spelled Kaitlyn and 28% Katelyn. Same name, slightly different impression: here are the figures for each spelling.

Kaitlyn42% of the family340 born in 2025#799 among girls−80% since 2015Katelyn28% of the family225 born in 2025#1,076 among girls−84% since 2015Caitlin10% of the family78 born in 2025#2,326 among girls−84% since 2015Caitlyn9% of the family71 born in 2025#2,485 among girls−86% since 2015Katelynn8% of the family63 born in 2025#2,719 among girls−86% since 2015Kaitlynn5% of the family41 born in 2025#3,645 among girls−85% since 2015

Ten years ago

Kaitlyn already led in 2015, with 35% of the family's births; it has 42% in 2025. All spellings together, the family went from 4,733 to 818 births (−83%).

Births by spelling, 2015 and 2025
Spelling20152025Change
Kaitlyn1,663340−80%
Katelyn1,385225−84%
Caitlin47778−84%
Caitlyn49471−86%
Katelynn44163−86%
Kaitlynn27341−85%

How they sound

All of these spellings are said the same way: /ˈkeɪtlɪn/ (KAYT-lin). So the choice is about how it looks: it is the spelling people will read on a birth card, a name tag or an email address, and the one your child will sometimes spell out.

In France

In France in 2025: Kaitlyn 5 births and Caitlyn 5 births. The other spellings are not given there often enough to be counted.

Sources: Social Security Administration (SSA), Insee (France), 2025 data. How we calculate these figures.

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