boy name · Irish origin
Oisin
/ uh-SHEEN /
Meaning
Oisin means Little deer (Irish).
Gender
Boy
Origin
Irish
Pronunciation
uh-SHEEN
Popularity
#4660 · U.S. boys (2025)
Popularity of Oisin in the US, 1880–2025
Oisin first appears in US records in 1991. It peaked in 2020, when 31 boys were given the name; in 2025 there were 22.
Source: US Social Security Administration.
What does Oisin mean?
Oisín means “little deer” or “fawn.” He is the poet-warrior of Irish legend.
Frequently asked questions
What does the name Oisin mean?
Oisin means Little deer. Oisín means “little deer” or “fawn.” He is the poet-warrior of Irish legend.
What is the origin of the name Oisin?
Oisin is of Irish origin.
How do you pronounce Oisin?
Oisin is pronounced “uh-SHEEN.”
Is Oisin a boy or a girl name?
Oisin is most commonly used as a boy name.
How popular is the name Oisin?
In 2025, Oisin ranked #4660 among boys’ names in the United States, according to U.S. Social Security Administration data.
When was the name Oisin most popular?
Oisin was most popular in 2020, when about 31 US babies were given the name that year, according to US Social Security Administration records.