Caitlyn means pure — the C-LYN variant of Katelyn/Caitlin, from the Irish Gaelic form of Katherine. Caitlyn carries the Irish-pure heritage through the C-opening and -lyn meadow ending. Same Greek-through-Irish purity, C-LYN calligraphy. Two syllables of Irish-Katherine purity through the most popular compound format.
Caitlyn is the C-LYN variant of Caitlin from the Irish Gaelic form of Katherine meaning pure. The C-opening follows Irish tradition.
2
First recorded
Earliest known use: C-LYN variant of Caitlin/Katherine.
3
Today
Caitlyn remains a beloved choice, ranking #1434 in the US. 52,565 babies have been named Caitlyn since 1968.
◈ Sources: Behind the Name, SSA data
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How popular is Caitlyn?
1998peak year
Today, Caitlyn is rarely chosen — ranked well outside the top 1,000 (around #1434), with only about 194 babies given the name per year. But it wasn't always this way. At its peak in 1998, 2,937 babies were given the name (ranked #115 nationally). Its strongest stretch was the 1990s. Caitlyn has been declining in recent years. In all, around 52,565 babies have been registered as Caitlyn since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
Caitlyn's Life Path 1 is the leader's number — pure leadership. People named Caitlyn tend to be bright, Irish-hearted, and gifted at carrying Greek purity through Irish calligraphy.
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Greek purity through Irish
✦
C-opening authentic
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Kate-embedded
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-lyn flowing
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Bright pure
C3
A1
I9
T2
L3
Y7
N5
Sum: 30 → Life path 3
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Personality of Caitlyn
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Bright & creative
Imaginative, expressive, endlessly inventive.
😊
Magnetic warmth
Their laugh is contagious. People love being near them.
🌈
Eternal optimist
Even in dark moments they find the light.
🗣️
Storyteller
They can describe anything and make it fascinating.
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