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Caelyn
GirlMeaning of Caelyn: Irish: 'slender'
Caelyn is a girl's name most strongly associated with Irish naming. It has 6 letters and 2 syllables, and it is a genuinely rare and unique choice — 5012th most popular girls' name in the United States in 2025.
US rank 2025
#5012
24 babies in 2025
England & Wales 2024
—
Fewer than 3 babies or unlisted
US babies since 1880
2,426
First recorded 1987 · peak 2012
Trend
falling
Style: rare
Popularity over time
Gender split
0% boys · 100% girls, based on US, UK and international usage.
Origins & cultures
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