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Caelin
UnisexMeaning of Caelin: Irish: 'slender'
Caelin is a unisex name most strongly associated with Irish naming. It has 6 letters and 2 syllables, and it is a genuinely rare and unique choice — 14145th most popular name in the United States in 2025.
US rank 2025
#14145
5 babies in 2025
England & Wales 2024
—
Fewer than 3 babies or unlisted
US babies since 1880
769
First recorded 1992 · peak 1997
Trend
stable
Style: rare
Popularity over time
Gender split
44% boys · 56% girls, based on US, UK and international usage.
Origins & cultures
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