"little deer, fawn"
Origin: Old Irish
Language: Irish
Oisin
Does Oisin flow with your last name?
The greatest poet of Irish mythology, son of legend
Irish
Celtic
Scottish
Earthy
Vintage
Unique
Literary
Spiritual
Reviewed by the NamingEverything Editorial Team · Updated
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Nicknames
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2 shorthand options for every setting
Meaning & Origin
"young deer"
Origin: Celtic
Language: English
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Things to Know About This Name
- Pronunciation is frequently unknown outside Ireland (pronounced UH-sheen not OH-ih-sin)
The Story of Oisin
Oisin (also spelled Ossian) comes from the Old Irish word os meaning deer, with the diminutive suffix making it little deer or fawn. In Irish mythology, Oisin is the son of the legendary warrior Fionn mac Cumhaill and the goddess Sive, who was transformed into a deer. He grew up in the wilderness and became the greatest poet of the Fianna.
Oisin has surged in popularity in Ireland, consistently ranking in the top 20 boys names. Outside Ireland, it has gained attention among families seeking Celtic names with deep mythological roots. The difficulty of pronunciation outside Ireland is a known tradeoff.
In Irish mythology, Oisin traveled to Tir na nOg (Land of Youth) with the fairy woman Niamh, where he lived for 300 years. When he returned to Ireland, he instantly aged. His poetry, preserved in the Fenian Cycle, is considered some of the most beautiful in Irish literature.
Historical Record
Oisin first appeared in US Social Security records in 1991.
Over 491 babies have been named Oisin in the United States since SSA records began.
Today, Oisin is a hidden gem — rare but distinctive , currently ranked #4,145 for boy names in the US .
Fun Facts
- Oisin is consistently one of the most popular boys names in Ireland today
- The 18th-century poet James Macpherson claimed to have translated ancient Ossian poems, sparking a literary sensation across Europe
Oisin in Other Languages
Irish
Oisín
Latin
Ossianus
Welsh
Osian
English
Ossian
Scottish Gaelic
Osian
Popularity Over Time
#4,145
Current Rank
Rising
Trend
Hidden Gem
Based on SSA data 1880–present
Year-by-year popularity data will be available soon.
Famous People Named Oisin
O
Oisin Murphy
Athlete
1995
Irish professional jockey and multiple British champion jockey
O
Oisin (Irish Mythology) Fictional
Other
Son of Fionn mac Cumhaill in Irish mythology, greatest poet of the Fianna, who journeyed to the Land of Youth and return...
Son of Fionn mac Cumhaill in Irish mythology, greatest poet of the Fianna, who journeyed to the Land of Youth and returned 300 years later
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Compare Oisin with:
Quick Facts
- Gender
- Boy
- Syllables
- 2
- Popularity Rank
- #4,145
- Total SSA Count
- 26
- Cultural Origins
- Irish Celtic Scottish
- Pronunciation
- Hard
- Formality
- Moderate
- Cross-Cultural Ease
- Low
Common Nicknames
Osh
Shin
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Classic pairing, smooth 2-2 syllable flow
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Classic pairing, smooth 2-1 syllable flow
-
Timeless choice, Irish heritage match, extended 2-3 combo
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Timeless choice, unique style, extended 2-3 combo
-
Timeless choice, Irish heritage match, extended 2-3 combo
-
Classic pairing, smooth 2-1 syllable flow
-
Classic pairing, smooth 2-2 syllable flow
-
Classic pairing, smooth 2-2 syllable flow
-
Classic pairing, smooth 2-2 syllable flow
-
Timeless choice, Scottish heritage match, extended 2-3 combo
Middle Names
Middle Names for Oisin
7 name pairings with syllable flow tips
Sibling Names
Sibling Match
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Frequently Asked Questions About Oisin
What does the name Oisin mean?
"little deer, fawn" (from Old Irish). "young deer" (from Celtic). Oisin (also spelled Ossian) comes from the Old Irish word os meaning deer, with the diminutive suffix making it little deer or fawn. In Irish mythology, Oisin is the son of the legendary warrior Fionn mac Cumhaill and the goddess Sive, who was transformed into a deer. He grew up in the wilderness and became the greatest poet of the Fianna.
What is the origin of the name Oisin?
Oisin has Old Irish, Celtic, Irish, and Scottish origins. In Old Irish, it means "little deer, fawn". In Celtic, it means "young deer".
Is Oisin a boy or girl name?
Oisin is primarily used as a boy name.
How popular is the name Oisin?
Oisin is currently ranked #4145 in popularity for boy names in the United States.
What are common nicknames for Oisin?
Common nicknames for Oisin include Osh and Shin.
What are good middle names for Oisin?
Popular middle name pairings include Oisin Patrick, Oisin Brendan, Oisin Cormac, Oisin Finn, Oisin James, Oisin Liam, and Oisin Seamus.
What are good sibling names for Oisin?
Names that pair well with Oisin as siblings include Finn, Cormac, Aoife, Saoirse, Brigid, Ciaran, and Niamh.
How many syllables does Oisin have?
Oisin has 2 syllables, making it easy to say and remember.
Is Oisin a common or rare name?
Oisin is an uncommon name, ranked #4145 in the US. Its rarity gives it a distinctive, memorable quality.
About the Name Oisin
Oisin is a boy name with Irish, Celtic, and Scottish origins . The name means "little deer, fawn" in Old Irish .
Oisin is currently ranked #4,145 in popularity for boy names in the United States.
The name Oisin has 2 syllables, making it easy to pronounce and remember.
Common nicknames for Oisin include Osh and Shin. These shorter forms provide casual alternatives while keeping the elegance of the full name.
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Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- Behind the Name (etymology and meaning research)
- NamingEverything editorial research and analysis