Oisín
Origin
Irish
Syllables
2
Peak era
Rare
Today
▬ Steady
Meaning
little deer (legendary poet-warrior, son of Fionn mac Cumhaill)
Popularity, 1890–2024
1890srare in US records2020s
Shape drawn from US Social Security baby-name records. Oisín has stayed rare in US records the whole time: no peak decade to name.
The Oisín deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Oisín truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Oisín fits with your family’s names and surname.
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