About the name Oisin
Oisin is a boy name with Irish roots, meaning “deer”. It is related to Ossian, which is where the meaning comes from.
It has a unique, nature feel. In 2025, Oisin ranked #4660 for boys in the US, with 22 babies given the name. Its peak year since 1940 was 2020. Since 2000, 100% of US babies named Oisin were boys.
Etymology
A variant of Ossian, which comes from Irish, meaning “deer”.
Name meaning adapted from Wiktionary (“Oisin”, “Ossian”) by Wiktionary contributors, CC BY-SA 4.0.
- US rank 2025
- #4660
- In 2015
- #5669
- Babies in 2025
- 22
Popularity of Oisin, 1940–2025
Latest SSA data: 2025.
Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).
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Oisin
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The Baby Kit
See Oisin on a birth announcement
Birth announcements, shower invitations, nursery wall art and milestone cards, all personalized with Oisin. Type your details once and print at home or at any print shop.
Names similar to Oisin
Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.