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Oisin
BoyMeaning of Oisin: Irish: 'little deer'
Oisin is a boy's name most strongly associated with Irish naming. It has 5 letters and 2 syllables, and it is familiar but far from overused — 4480th most popular boys' name in the United States in 2025 and 630th in England & Wales.
US rank 2025
#4480
22 babies in 2025
England & Wales 2024
#630
60 babies in 2024
US babies since 1880
513
First recorded 1991 · peak 2020
Trend
stable
Style: uncommon
Popularity over time
Gender split
100% boys · 0% girls, based on US, UK and international usage.
Origins & cultures
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