Boy’s name · Irish

Oisin

How to say it: uh-SHEEN · /əˈʃin/

Irish meaning 'little deer' - legendary poet son of Fionn, pronounced uh-SHEEN.

Oisin was the 3,784th most popular boys’ name in the United States in 2025, given to 22 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up about 29% in ten years, and it is projected to rise to #3,670 by 2030.

Updated · SSA 2025 data, published May 2026 · How we compute these figures

#3,784for boys in 2025
1 in 150,697US babies
22born in 2025
#3,670projected for 2030
2020sits peak decade
under 1 in 200chance a classmate shares it

Key facts

Key facts about Oisin
Rank among boys’ names, 2025#3,784
Babies born in 202522
Share of births1 in 150,697
Peak decade2020s
Change over 10 years+29%
Projected rank for 2030 (estimate)#3,670

Sources: Social Security Administration (SSA). How we compute these figures.

Its life, decade by decade

Oisin is a newcomer: almost all of its history is from the last forty years.

1900195020002020–25
Peak: 15 per million births, 2020s.

What goes with it

Parents who love Oisin also love

Nicknames

  • Oss

Honouring a Oisin in the family

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Oisin is about under 1 in 200.

Around the world

This spelling is used in English, Irish.

Ireland: #5.

Famous people named Oisin

From Wikidata and Wikipedia

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