Brother names for Oisin
uh-SHEEN · 2 syllables
Rare in France, England and Wales, Italy, and 19 more places.
Ranked by fit
40 brother names for Oisin, ranked by fit. Add your surname to re-rank.
1 in 44, Ireland
Say it REE-un
Rose and fell with Oisin · As common as Oisin
Loved in Ireland. Common in Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 44 boys born in Ireland in 2025. Number 1 there.
1 in 86, Ireland
Say it KIL-ee-un
Rose and fell with Oisin · As common as Oisin
Loved in Ireland. Common in Scotland and Northern Ireland. Rare in France, England and Wales, Italy, and 18 more places.
1 in 86 boys born in Ireland in 2025. Number 9 there.
1 in 71, Ireland
Say it FYUN
Rose and fell with Oisin · As common as Oisin
Loved in Ireland. Common in Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 71 boys born in Ireland in 2025. Number 6 there.
1 in 83, Ireland
Say it TYG
Rose and fell with Oisin · Irish, like Oisin
Loved in Ireland. Common in Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 83 boys born in Ireland in 2025. Number 8 there.
1 in 116, Ireland
Say it DAR-uh
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 116 boys born in Ireland in 2025. Number 19 there.
1 in 143, Ireland
Say it KEE-un
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 143 boys born in Ireland in 2025. Number 33 there.
1 in 128, Ireland
Say it DAH-hee
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 128 boys born in Ireland in 2025. Number 59 there.
1 in 212, Northern Ireland
Say it OH-run
Rose and fell with Oisin · Irish, like Oisin · Same initial as Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 212 boys born in Northern Ireland in 2025. Number 55 there.
1 in 235, Ireland
Say it SHAY
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland. Rare across France, the UK, Italy, and 18 more places.
1 in 235 boys born in Ireland in 2025. Number 52 there.
1 in 166, Northern Ireland
Say it ROR-ee
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 166 boys born in Northern Ireland in 2025. Number 38 there.
1 in 224, Northern Ireland
Say it KOH-nun
Rose and fell with Oisin · Irish, like Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 224 boys born in Northern Ireland in 2025. Number 61 there.
1 in 376, Northern Ireland
Say it DAR-uh
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 376 boys born in Northern Ireland in 2025. Number 107 there.
1 in 345, Northern Ireland
Say it KAY-lun
Rose and fell with Oisin · Irish, like Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 345 boys born in Northern Ireland in 2025. Number 99 there.
1 in 460, Northern Ireland
Say it KOR-mak
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 460 boys born in Northern Ireland in 2025. Number 126 there.
1 in 345, Northern Ireland
Say it TEER-nun
Rose and fell with Oisin · Irish, like Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 345 boys born in Northern Ireland in 2025. Number 99 there.
1 in 371, Ireland
Say it KA-hul
Rose and fell with Oisin · Irish, like Oisin
Common in Ireland. Rare across France, the UK, Italy, and 18 more places.
1 in 371 boys born in Ireland in 2025. Number 90 there.
1 in 579, Ireland
Say it OH-in
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 579 boys born in Ireland in 2025. Number 132 there.
1 in 484, Ireland
Say it KEER-un
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 484 boys born in Ireland in 2025. Number 149 there.
1 in 753, Northern Ireland
Say it OR-un
Rose and fell with Oisin · Irish, like Oisin · Same initial as Oisin
Rare in all 24 places we hold figures for.
1 in 753 boys born in Northern Ireland in 2025. Number 185 there.
1 in 436, Northern Ireland
Say it NY-ul
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 436 boys born in Northern Ireland in 2025. Number 120 there.
1 in 331, Northern Ireland
Say it ROO-un
Rose and fell with Oisin · Irish, like Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 331 boys born in Northern Ireland in 2025. Number 95 there.
1 in 592, Northern Ireland
Say it FAY-lun
Rose and fell with Oisin · Irish, like Oisin
Rare in all 24 places we hold figures for.
1 in 592 boys born in Northern Ireland in 2025. Number 159 there.
1 in 159, Ireland
Say it OL-ee
Rose and fell with Oisin · As common as Oisin · Same initial as Oisin
Common in Ireland, Scotland, Northern Ireland, and 2 more places. Rare in France, England and Wales, Italy, and 18 more places.
1 in 159 boys born in Ireland in 2025. Number 31 there.
1 in 139, England and Wales
Say it AL-fee
Rose and fell with Oisin
Common across the UK, Ireland, and three Australian states. Rare in France, Italy, Poland, and 17 more places.
1 in 139 boys born in England and Wales in 2025. Number 16 there.
1 in 108, England and Wales
Say it FRED-ee
Rose and fell with Oisin
Loved in England and Wales. Common in Ireland, Scotland, Northern Ireland, and 2 more places. Rare in France, Italy, Poland, and 17 more places.
1 in 108 boys born in England and Wales in 2025. Number 10 there.
1 in 307, England and Wales
Say it FRANK-ee
Rose and fell with Oisin
Common across the UK and Ireland. Rare in France, Italy, Poland, and 17 more places.
1 in 307 boys born in England and Wales in 2025. Number 56 there.
1 in 158, Ireland
Say it SEN-un
Rose and fell with Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 158 boys born in Ireland in 2025. Number 38 there.
1 in 376, Northern Ireland
Say it ZAK
Rose and fell with Oisin
Common in Ireland. Rare across France, the UK, Italy, and 18 more places.
1 in 376 boys born in Northern Ireland in 2025. Number 107 there.
1 in 162, Northern Ireland
Say it DAW-ruh
Rose and fell with Oisin
Common in Ireland and Northern Ireland. Rare in France, England and Wales, Italy, and 19 more places.
1 in 162 boys born in Northern Ireland in 2025. Number 36 there.
1 in 197, Northern Ireland
Say it LOR-kun
Rose and fell with Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 197 boys born in Northern Ireland in 2025. Number 48 there.
1 in 276, Ireland
Say it DUN-uh-khuh
Rose and fell with Oisin
Common in Ireland. Rare across France, the UK, Italy, and 18 more places.
1 in 276 boys born in Ireland in 2025. Number 64 there.
1 in 235, Ireland
Say it KOO-un
Rose and fell with Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 235 boys born in Ireland in 2025. Number 135 there.
1 in 251, Northern Ireland
Say it AY-dun
Rose and fell with Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 251 boys born in Northern Ireland in 2025. Number 72 there.
1 in 319, Northern Ireland
Say it PAW-drig
Rose and fell with Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 319 boys born in Northern Ireland in 2025. Number 90 there.
1 in 409, Ireland
Say it PAD-ee
Rose and fell with Oisin
Common in Ireland. Rare across France, the UK, Italy, and 18 more places.
1 in 409 boys born in Ireland in 2025. Number 99 there.
1 in 518, Northern Ireland
Say it FEE-uh-kruh
Rose and fell with Oisin
Rare in all 24 places we hold figures for.
1 in 518 boys born in Northern Ireland in 2025. Number 143 there.
1 in 436, Northern Ireland
Say it TEER-nun
Rose and fell with Oisin
Rare in all 24 places we hold figures for.
1 in 436 boys born in Northern Ireland in 2025. Number 120 there.
1 in 552, Northern Ireland
Say it LOKH-lin
Rose and fell with Oisin
Rare in all 24 places we hold figures for.
1 in 552 boys born in Northern Ireland in 2025. Number 149 there.
1 in 307, Northern Ireland
Say it OH-in
Rose and fell with Oisin · Same ending as Oisin
Common in Northern Ireland. Rare in France, England and Wales, Italy, and 20 more places.
1 in 307 boys born in Northern Ireland in 2025. Number 86 there.
1 in 195, England and Wales
Say it ROH-un
As common as Oisin · Irish, like Oisin
Common across the UK, three Canadian provinces, Ireland, and New Zealand. Rare in France, Italy, Poland, and 15 more places.
1 in 195 boys born in England and Wales in 2025. Number 30 there.
How this list is scored
How this list is scored
Boy names that sit well beside Oisin, ranked by the fit engine: names whose popularity moves with Oisin's, from the same era, about as common and with shared origins. Rhymes, shared first letters and matching endings count against. Official birth statistics, not forum votes.
Each candidate scores at most about 52 points against the sibling: 22.5 when the two names' popularity curves moved together across regions and decades, up to 13.5 for a similar median birth year, up to 9 for similar popularity, and about 7 for a shared origin. A rhyme costs 27 points and a matching two-letter ending 4.5. Spellings of the sibling's own name and names on the same stem are never suggested. Only one spelling of each name is listed; the others are shown underneath.
Scores use official birth statistics from 40 regions and origins from Wiktionary. How these figures are computed.